当前位置： 首页 > news >正文

路由器实现 IP 子网之间的通信

news 2025/12/16 2:58:00

目录

路由器配置静态或默认路由实现 IP 子网之间的通信

地址聚合与最长前缀匹配路由配置 

路由器配置静态或默认路由实现 IP 子网之间的通信

按如下拓扑图配置 

其中，路由器加入4GEW-T

PC配置如下

LSW1的配置 

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname LSW1
[LSW1]vlan batch 10
Info: This operation may take a few seconds. Please wait for a moment...done.
[LSW1]
Sep 17 2023 19:04:40-08:00 LSW1 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.2
5.191.3.1 configurations have been changed. The current change number is 5, the 
change loop count is 0, and the maximum number of records is 4095.
[LSW1]undo info-center enable
Info: Information center is disabled.
[LSW1]port-group pvlan10
[LSW1-port-group-pvlan10]group-member g0/0/1
[LSW1-port-group-pvlan10]group-member g0/0/11 to g0/0/14
[LSW1-port-group-pvlan10]port link-type access
[LSW1-GigabitEthernet0/0/1]port link-type access
[LSW1-GigabitEthernet0/0/11]port link-type access
[LSW1-GigabitEthernet0/0/12]port link-type access
[LSW1-GigabitEthernet0/0/13]port link-type access
[LSW1-GigabitEthernet0/0/14]port link-type access
[LSW1-port-group-pvlan10]port default vlan 10
[LSW1-GigabitEthernet0/0/1]port default vlan 10
[LSW1-GigabitEthernet0/0/11]port default vlan 10
[LSW1-GigabitEthernet0/0/12]port default vlan 10
[LSW1-GigabitEthernet0/0/13]port default vlan 10
[LSW1-GigabitEthernet0/0/14]port default vlan 10
[LSW1-port-group-pvlan10]quit
[LSW1]display vlan
The total number of vlans is : 2
--------------------------------------------------------------------------------
U: Up;         D: Down;         TG: Tagged;         UT: Untagged;
MP: Vlan-mapping;               ST: Vlan-stacking;
#: ProtocolTransparent-vlan;    *: Management-vlan;
--------------------------------------------------------------------------------VID  Type    Ports                                                          
--------------------------------------------------------------------------------
1    common  UT:GE0/0/2(D)      GE0/0/3(D)      GE0/0/4(D)      GE0/0/5(D)      GE0/0/6(D)      GE0/0/7(D)      GE0/0/8(D)      GE0/0/9(D)      GE0/0/10(D)     GE0/0/15(D)     GE0/0/16(D)     GE0/0/17(D)     GE0/0/18(D)     GE0/0/19(D)     GE0/0/20(D)     GE0/0/21(D)     GE0/0/22(D)     GE0/0/23(D)     GE0/0/24(D)                     10   common  UT:GE0/0/1(U)      GE0/0/11(U)     GE0/0/12(U)     GE0/0/13(U)     GE0/0/14(U)                                                     VID  Status  Property      MAC-LRN Statistics Description      
--------------------------------------------------------------------------------1    enable  default       enable  disable    VLAN 0001                         
10   enable  default       enable  disable    VLAN 0010                         
[LSW1]display port vlan
Port                    Link Type    PVID  Trunk VLAN List
-------------------------------------------------------------------------------
GigabitEthernet0/0/1    access       10    -                                   
GigabitEthernet0/0/2    hybrid       1     -                                   
GigabitEthernet0/0/3    hybrid       1     -                                   
GigabitEthernet0/0/4    hybrid       1     -                                   
GigabitEthernet0/0/5    hybrid       1     -                                   
GigabitEthernet0/0/6    hybrid       1     -                                   
GigabitEthernet0/0/7    hybrid       1     -                                   
GigabitEthernet0/0/8    hybrid       1     -                                   
GigabitEthernet0/0/9    hybrid       1     -                                   
GigabitEthernet0/0/10   hybrid       1     -                                   
GigabitEthernet0/0/11   access       10    -                                   
GigabitEthernet0/0/12   access       10    -                                   
GigabitEthernet0/0/13   access       10    -                                   
GigabitEthernet0/0/14   access       10    -                                   
GigabitEthernet0/0/15   hybrid       1     -                                   
GigabitEthernet0/0/16   hybrid       1     -                                   
GigabitEthernet0/0/17   hybrid       1     -                                   
GigabitEthernet0/0/18   hybrid       1     -                                   
GigabitEthernet0/0/19   hybrid       1     -                                   
GigabitEthernet0/0/20   hybrid       1     -                                   
GigabitEthernet0/0/21   hybrid       1     -                                   
GigabitEthernet0/0/22   hybrid       1     -                                   
GigabitEthernet0/0/23   hybrid       1     -                                   
GigabitEthernet0/0/24   hybrid       1     -                                   
[LSW1]

 配置RTA       

<Huawei>SYS
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname RTA
[RTA]int g4/0/0
[RTA-GigabitEthernet4/0/0]ip address 192.168.10.1 24
Sep 17 2023 19:10:17-08:00 RTA %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet4/0/0 has entered the UP state. 
[RTA-GigabitEthernet4/0/0]qu
[RTA]int g0/0/0
[RTA-GigabitEthernet0/0/0]ip address 172.16.101.1 24
Sep 17 2023 19:10:39-08:00 RTA %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state. 
[RTA-GigabitEthernet0/0/0]qu
[RTA]int g0/0/1
[RTA-GigabitEthernet0/0/1]ip address 172.16.103.1 24
[RTA-GigabitEthernet0/0/1]
Sep 17 2023 19:10:59-08:00 RTA %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state. 
[RTA-GigabitEthernet0/0/1]qu
[RTA]

 配置RTB 

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname RTB
[RTB]int g4/0/0
[RTB-GigabitEthernet4/0/0]ip address 192.168.30.1 24
Sep 17 2023 19:12:19-08:00 RTB %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet4/0/0 has entered the UP state. 
[RTB-GigabitEthernet4/0/0]qu
[RTB]int g0/0/0
[RTB-GigabitEthernet0/0/0]ip address 172.16.101.2 24
Sep 17 2023 19:12:43-08:00 RTB %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state. 
[RTB-GigabitEthernet0/0/0]qu
[RTB]interface g0/0/1
[RTB-GigabitEthernet0/0/1]ip address 172.16.102.2 24
Sep 17 2023 19:13:02-08:00 RTB %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state. 
[RTB-GigabitEthernet0/0/1]qu

 配置RTC

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname RTC
[RTC]int g4/0/0
[RTC-GigabitEthernet4/0/0]ip address 192.168.80.1 24
Sep 17 2023 19:15:08-08:00 RTC %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet4/0/0 has entered the UP state. 
[RTC-GigabitEthernet4/0/0]qu
[RTC]int g4/0/1
[RTC-GigabitEthernet4/0/1]ip address 192.168.81.1 24
Sep 17 2023 19:15:28-08:00 RTC %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet4/0/1 has entered the UP state. 
[RTC-GigabitEthernet4/0/1]qu
[RTC]interface g0/0/0
[RTC-GigabitEthernet0/0/0]ip address 172.16.103.2 24
Sep 17 2023 19:15:50-08:00 RTC %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state. 
[RTC-GigabitEthernet0/0/0]qu
[RTC]interface g0/0/1
[RTC-GigabitEthernet0/0/1]ip address 172.16.102.1 24
Sep 17 2023 19:16:08-08:00 RTC %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state. 
[RTC-GigabitEthernet0/0/1]qu

路由规划如下

招生就业部的计算机最多，可以使用默认路由。

同时将路由器RTB到招生就业部网络的路由设置为静态路由，下一跳地址为路由 器RTA的172.16.101.1。

将路由器RTB到学籍管理部和考试中心网络的路由设置为默 认路由，下一跳地址为路由器RTC的172.16.102.1。

 配置路由器RTA的路由

<RTA>
<RTA>sys
Enter system view, return user view with Ctrl+Z.
[RTA]ip route-static 0.0.0.0 0.0.0.0 172.16.101.2
[RTA]display IP routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.101.2    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.101.0/24  Direct  0    0           D   172.16.101.1    GigabitEthernet
0/0/0172.16.101.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.101.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.103.0/24  Direct  0    0           D   172.16.103.1    GigabitEthernet
0/0/1172.16.103.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.103.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1192.168.10.0/24  Direct  0    0           D   192.168.10.1    GigabitEthernet
4/0/0192.168.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

配置路由器RTB的路由 

[RTB]ip route-static 192.168.10.0 24 172.16.101.1
[RTB]ip route-static 0.0.0.0 0.0.0.0 172.16.102.1
[RTB]display IP routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 15       Routes : 15       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.102.1    GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.101.0/24  Direct  0    0           D   172.16.101.2    GigabitEthernet
0/0/0172.16.101.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.101.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.102.0/24  Direct  0    0           D   172.16.102.2    GigabitEthernet
0/0/1172.16.102.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.102.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1192.168.10.0/24  Static  60   0          RD   172.16.101.1    GigabitEthernet
0/0/0192.168.30.0/24  Direct  0    0           D   192.168.30.1    GigabitEthernet
4/0/0192.168.30.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

配置路由器RTC的路由

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname RTC
[RTC]int g4/0/0
[RTC-GigabitEthernet4/0/0]ip address 192.168.80.1 24
Sep 17 2023 19:15:08-08:00 RTC %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet4/0/0 has entered the UP state. 
[RTC-GigabitEthernet4/0/0]qu
[RTC]int g4/0/1
[RTC-GigabitEthernet4/0/1]ip address 192.168.81.1 24
Sep 17 2023 19:15:28-08:00 RTC %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet4/0/1 has entered the UP state. 
[RTC-GigabitEthernet4/0/1]qu
[RTC]interface g0/0/0
[RTC-GigabitEthernet0/0/0]ip address 172.16.103.2 24
Sep 17 2023 19:15:50-08:00 RTC %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state. 
[RTC-GigabitEthernet0/0/0]qu
[RTC]interface g0/0/1
[RTC-GigabitEthernet0/0/1]ip address 172.16.102.1 24
Sep 17 2023 19:16:08-08:00 RTC %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state. 
[RTC-GigabitEthernet0/0/1]qu
[RTC]Please check whether system data has been changed, and save data in timeConfiguration console time out, please press any key to log on<RTC>sys
Enter system view, return user view with Ctrl+Z.
[RTC]ip route-static 0.0.0.0 0.0.0.0 172.16.103.1
[RTC]display IP routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 17       Routes : 17       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.103.1    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.102.0/24  Direct  0    0           D   172.16.102.1    GigabitEthernet
0/0/1172.16.102.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.102.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.103.0/24  Direct  0    0           D   172.16.103.2    GigabitEthernet
0/0/0172.16.103.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.103.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0192.168.80.0/24  Direct  0    0           D   192.168.80.1    GigabitEthernet
4/0/0192.168.80.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.80.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.81.0/24  Direct  0    0           D   192.168.81.1    GigabitEthernet
4/0/1192.168.81.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/1192.168.81.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

 在PC-10-1测试是否能与PC-30-1、PC-80-1和PC-81-1通信：

PC>ping 192.168.30.11Ping 192.168.30.11: 32 data bytes, Press Ctrl_C to break
From 192.168.30.11: bytes=32 seq=1 ttl=126 time=47 ms
From 192.168.30.11: bytes=32 seq=2 ttl=126 time=47 ms
From 192.168.30.11: bytes=32 seq=3 ttl=126 time=31 ms
From 192.168.30.11: bytes=32 seq=4 ttl=126 time=32 ms
From 192.168.30.11: bytes=32 seq=5 ttl=126 time=31 ms--- 192.168.30.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 31/37/47 msPC>ping 192.168.80.11Ping 192.168.80.11: 32 data bytes, Press Ctrl_C to break
From 192.168.80.11: bytes=32 seq=1 ttl=126 time=47 ms
From 192.168.80.11: bytes=32 seq=2 ttl=126 time=16 ms
From 192.168.80.11: bytes=32 seq=3 ttl=126 time=47 ms
From 192.168.80.11: bytes=32 seq=4 ttl=126 time=47 ms
From 192.168.80.11: bytes=32 seq=5 ttl=126 time=62 ms--- 192.168.80.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 16/43/62 msPC>ping 192.168.81.11Ping 192.168.81.11: 32 data bytes, Press Ctrl_C to break
From 192.168.81.11: bytes=32 seq=1 ttl=126 time=47 ms
From 192.168.81.11: bytes=32 seq=2 ttl=126 time=47 ms
From 192.168.81.11: bytes=32 seq=3 ttl=126 time=31 ms
From 192.168.81.11: bytes=32 seq=4 ttl=126 time=47 ms
From 192.168.81.11: bytes=32 seq=5 ttl=126 time=47 ms--- 192.168.81.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 31/43/47 ms

 在PC-30-1测试是否能与PC-10-1、PC-80-1和PC-81-1通信：

PC>ping 192.168.10.11Ping 192.168.10.11: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.10.11: bytes=32 seq=2 ttl=126 time=63 ms
From 192.168.10.11: bytes=32 seq=3 ttl=126 time=47 ms
From 192.168.10.11: bytes=32 seq=4 ttl=126 time=47 ms
From 192.168.10.11: bytes=32 seq=5 ttl=126 time=47 ms--- 192.168.10.11 ping statistics ---5 packet(s) transmitted4 packet(s) received20.00% packet lossround-trip min/avg/max = 0/51/63 msPC>ping 192.168.80.11Ping 192.168.80.11: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.80.11: bytes=32 seq=2 ttl=125 time=15 ms
From 192.168.80.11: bytes=32 seq=3 ttl=125 time=32 ms
From 192.168.80.11: bytes=32 seq=4 ttl=125 time=15 ms
From 192.168.80.11: bytes=32 seq=5 ttl=125 time=16 ms--- 192.168.80.11 ping statistics ---5 packet(s) transmitted4 packet(s) received20.00% packet lossround-trip min/avg/max = 0/19/32 msPC>ping 192.168.81.11Ping 192.168.81.11: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.81.11: bytes=32 seq=2 ttl=125 time=16 ms
From 192.168.81.11: bytes=32 seq=3 ttl=125 time=16 ms
From 192.168.81.11: bytes=32 seq=4 ttl=125 time=31 ms
From 192.168.81.11: bytes=32 seq=5 ttl=125 time=16 ms--- 192.168.81.11 ping statistics ---5 packet(s) transmitted4 packet(s) received20.00% packet lossround-trip min/avg/max = 0/19/31 ms

在PC-80-1测试是否能与PC-10-1、PC-30-1和PC-81-1通信：

PC>ping 192.168.10.11Ping 192.168.10.11: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.10.11: bytes=32 seq=2 ttl=125 time=46 ms
From 192.168.10.11: bytes=32 seq=3 ttl=125 time=47 ms
From 192.168.10.11: bytes=32 seq=4 ttl=125 time=63 ms
From 192.168.10.11: bytes=32 seq=5 ttl=125 time=47 ms--- 192.168.10.11 ping statistics ---5 packet(s) transmitted4 packet(s) received20.00% packet lossround-trip min/avg/max = 0/50/63 msPC>ping 192.168.30.11Ping 192.168.30.11: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.30.11: bytes=32 seq=2 ttl=126 time=15 ms
From 192.168.30.11: bytes=32 seq=3 ttl=126 time=32 ms
From 192.168.30.11: bytes=32 seq=4 ttl=126 time=15 ms
From 192.168.30.11: bytes=32 seq=5 ttl=126 time=16 ms--- 192.168.30.11 ping statistics ---5 packet(s) transmitted4 packet(s) received20.00% packet lossround-trip min/avg/max = 0/19/32 msPC>ping 192.168.81.11Ping 192.168.81.11: 32 data bytes, Press Ctrl_C to break
From 192.168.81.11: bytes=32 seq=1 ttl=127 time=16 ms
From 192.168.81.11: bytes=32 seq=2 ttl=127 time=16 ms
From 192.168.81.11: bytes=32 seq=3 ttl=127 time=15 ms
From 192.168.81.11: bytes=32 seq=4 ttl=127 time=16 ms
From 192.168.81.11: bytes=32 seq=5 ttl=127 time=15 ms--- 192.168.81.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 15/15/16 ms

 在PC-81-1测试是否能与PC-10-1、PC-30-1和PC-80-1通信：

PC>ping 192.168.10.11Ping 192.168.10.11: 32 data bytes, Press Ctrl_C to break
From 192.168.10.11: bytes=32 seq=1 ttl=125 time=47 ms
From 192.168.10.11: bytes=32 seq=2 ttl=125 time=47 ms
From 192.168.10.11: bytes=32 seq=3 ttl=125 time=47 ms
From 192.168.10.11: bytes=32 seq=4 ttl=125 time=62 ms
From 192.168.10.11: bytes=32 seq=5 ttl=125 time=63 ms--- 192.168.10.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 47/53/63 msPC>ping 192.168.30.11Ping 192.168.30.11: 32 data bytes, Press Ctrl_C to break
From 192.168.30.11: bytes=32 seq=1 ttl=126 time=31 ms
From 192.168.30.11: bytes=32 seq=2 ttl=126 time=16 ms
From 192.168.30.11: bytes=32 seq=3 ttl=126 time=15 ms
From 192.168.30.11: bytes=32 seq=4 ttl=126 time=31 ms
From 192.168.30.11: bytes=32 seq=5 ttl=126 time=32 ms--- 192.168.30.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 15/25/32 msPC>ping 192.168.80.11Ping 192.168.80.11: 32 data bytes, Press Ctrl_C to break
From 192.168.80.11: bytes=32 seq=1 ttl=127 time=15 ms
From 192.168.80.11: bytes=32 seq=2 ttl=127 time=16 ms
From 192.168.80.11: bytes=32 seq=3 ttl=127 time=16 ms
From 192.168.80.11: bytes=32 seq=4 ttl=127 time=15 ms
From 192.168.80.11: bytes=32 seq=5 ttl=127 time=16 ms--- 192.168.80.11 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 15/15/16 ms

至此，我们可以看到，不同vlan间也可以进行相互通信

我们也可以通过tracert，跟踪分析数据包从源主机到目标主机的路径，例如

在PC-10-1中 

PC>tracert 192.168.81.11traceroute to 192.168.81.11, 8 hops max
(ICMP), press Ctrl+C to stop1  192.168.10.1   32 ms  46 ms  47 ms  //第一跳为网关2  172.16.101.2   32 ms  62 ms  78 ms  //经过RTA的0/0/0端口3  172.16.102.1   31 ms  47 ms  63 ms  //经过RTC的0/0/1端口4  192.168.81.11   47 ms  47 ms  46 ms //最后到达目标主机

地址聚合与最长前缀匹配路由配置 

路由规划

将路由器 RTA 到所有其他用户网络的路由设置为默认路由，下一跳地址为路由器 RTB的172.16.101.2。

将路由器RTB到招生就业部网络 的路由设置为默认路由，下一跳地址为路由器RTA的172.16.101.1；由于学籍管理部和考试中心网络的IP地址是连续的，为减少路由条目，可以将它们聚合为一个地址 192.168.80.0/23，将到学籍管理部和考试中心网络的路由设置为静态路由，目的地址为聚合地址 192.168.80.0， 子网掩码 为 255.255.254.0 ， 下一跳地址为路由器RTC 的 172.16.102.1。

在路由器RTC的路由表中，配置一条到所有其他用户网络的默认路由，下一跳地址为路由器RTA的172.16.103.1。再增加一条经过路由器RTC到招生就业部计算机PC-10-4的静态路由，下一跳地址为路由器RTB的172.16.102.2。按最长前缀匹配规则，将其子网掩码设置为255.255.255.255(目标IP地址与指定的地址完全相同)。

 对RTA路由器的配置

[RTA]ip route-static 0.0.0.0 0.0.0.0 172.16.101.2
[RTA]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.101.2    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.101.0/24  Direct  0    0           D   172.16.101.1    GigabitEthernet
0/0/0172.16.101.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.101.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.103.0/24  Direct  0    0           D   172.16.103.1    GigabitEthernet
0/0/1172.16.103.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.103.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1192.168.10.0/24  Direct  0    0           D   192.168.10.1    GigabitEthernet
4/0/0192.168.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[RTA]

 对RTB路由的配置 

<RTB>sys
Enter system view, return user view with Ctrl+Z.
[RTB]ip route-static 192.168.80.0 23 172.16.102.1
[RTB]ip route-static 0.0.0.0 0.0.0.0 172.16.101.1
[RTB]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 15       Routes : 15       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.101.1    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.101.0/24  Direct  0    0           D   172.16.101.2    GigabitEthernet
0/0/0172.16.101.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.101.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.102.0/24  Direct  0    0           D   172.16.102.2    GigabitEthernet
0/0/1172.16.102.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.102.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1192.168.30.0/24  Direct  0    0           D   192.168.30.1    GigabitEthernet
4/0/0192.168.30.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.80.0/23  Static  60   0          RD   172.16.102.1    GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

 对RTC路由器进行配置

<RTC>sys
Enter system view, return user view with Ctrl+Z.
[RTC]ip route-static 192.168.10.14 32 172.16.102.2
[RTC]ip route-static 0.0.0.0 0.0.0.0 172.16.103.1
[RTC]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 18       Routes : 18       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.103.1    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.102.0/24  Direct  0    0           D   172.16.102.1    GigabitEthernet
0/0/1172.16.102.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.102.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.103.0/24  Direct  0    0           D   172.16.103.2    GigabitEthernet
0/0/0172.16.103.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.103.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0192.168.10.14/32  Static  60   0          RD   172.16.102.2    GigabitEthernet
0/0/1192.168.80.0/24  Direct  0    0           D   192.168.80.1    GigabitEthernet
4/0/0192.168.80.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.80.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.81.0/24  Direct  0    0           D   192.168.81.1    GigabitEthernet
4/0/1192.168.81.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/1192.168.81.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

 配置完成后，结果和第一个相同，不同IP子网间能完成通信

在PC-80-1做以下tracert操作

PC>tracert 192.168.10.11traceroute to 192.168.10.11, 8 hops max
(ICMP), press Ctrl+C to stop1  192.168.80.1   16 ms  16 ms  <1 ms2  172.16.103.1   15 ms  32 ms  15 ms3  192.168.10.11   31 ms  47 ms  47 msPC>tracert 192.168.10.14traceroute to 192.168.10.14, 8 hops max
(ICMP), press Ctrl+C to stop1  192.168.80.1   16 ms  16 ms  15 ms2  172.16.102.2   16 ms  31 ms  16 ms3  172.16.101.1   15 ms  32 ms  31 ms4  192.168.10.14   62 ms  79 ms  46 msPC>tracert 192.168.30.11traceroute to 192.168.30.11, 8 hops max
(ICMP), press Ctrl+C to stop1  192.168.80.1   16 ms  <1 ms  15 ms2  172.16.103.1   31 ms  16 ms  16 ms3  172.16.101.2   15 ms  32 ms  31 ms4  192.168.30.11   15 ms  32 ms  31 ms

将路由器RTB路由表中路由的目的地址 为 聚 合 地 址 192.168.80.0的子网掩码改为255.255.0.0，下一跳地址不变，仍为路由器RTC的172.16.102.1：

<RTB>sys
Enter system view, return user view with Ctrl+Z.
[RTB]undo ip route-static 192.168.80.0 23 172.16.102.1
[RTB]ip route-static 192.168.80.0 16 172.16.102.1
Info: The destination address and mask of the configured static route mismatched
, and the static route 192.168.0.0/16 was generated.
[RTB]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 15       Routes : 15       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.101.1    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.101.0/24  Direct  0    0           D   172.16.101.2    GigabitEthernet
0/0/0172.16.101.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.101.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.102.0/24  Direct  0    0           D   172.16.102.2    GigabitEthernet
0/0/1172.16.102.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.102.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1192.168.0.0/16  Static  60   0          RD   172.16.102.1    GigabitEthernet
0/0/1192.168.30.0/24  Direct  0    0           D   192.168.30.1    GigabitEthernet
4/0/0192.168.30.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0#与之前的路由表进行对比
[RTB]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 15       Routes : 15       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   172.16.101.1    GigabitEthernet
0/0/0127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.101.0/24  Direct  0    0           D   172.16.101.2    GigabitEthernet
0/0/0172.16.101.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.101.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.102.0/24  Direct  0    0           D   172.16.102.2    GigabitEthernet
0/0/1172.16.102.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1172.16.102.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1192.168.30.0/24  Direct  0    0           D   192.168.30.1    GigabitEthernet
4/0/0192.168.30.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
4/0/0192.168.80.0/23  Static  60   0          RD   172.16.102.1    GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

可以看到，目的地址变为了192.168.0.0/16，将较小的子网聚合为一个更大的子网后，减少了IP地址的使用，整个路由表的条目数量减少。

以下为拓扑图的链接

链接：https://pan.baidu.com/s/16xQ6-5hikMziAcKYjCFX0g 
提取码：ki07

但是还是提倡多写，多理解，多抓包，佬们一起努力！！💖💖💖💖 

相关文章：

路由器实现 IP 子网之间的通信

目录 路由器配置静态或默认路由实现 IP 子网之间的通信 地址聚合与最长前缀匹配路由配置 路由器配置静态或默认路由实现 IP 子网之间的通信 按如下拓扑图配置 其中&#xff0c;路由器加入4GEW-T PC配置如下 LSW1的配置 <Huawei>sys Enter system view, return user…...

编程日记 2023/9/27 10:01:05

解决kali beef启动失败问题及实战

文章目录 一、解决方法二、靶场实战应用1.首先打开dvwa这个靶场&#xff0c;设置难度为low2.打开xss-stored3.准备payload4.提交payload5.利用 一、解决方法 首先需卸载 ruby apt remove ruby 卸载 beef apt remove beef-xss 重新安装ruby apt-get install ruby apt-get insta…...

编程日记 2023/9/27 9:58:02

【NetEq】NackTracker 走读

重传列表的最大限制是500个包，大约10秒钟 // A limit for the size of the NACK list.static const size_t kNackListSizeLimit = 500; // 10 seconds for 20 ms frame// packets.允许设置一个小于max_nack_list_size的值 // Set a maximum for the size of the NACK list. I…...

编程日记 2023/9/27 9:57:01

条例18~23（设计与声明）

目录 条例18 让接口被正确使用&#xff0c;不易被误用 总结 条例19 设计class犹如设计type 条例20 宁以const的引用传参替代传值传参 总结 条例21 必须返回对象时&#xff0c;别妄想返回他的引用 总结 条例22 将成员变量声明为private 总结 条例23 宁以非友元非…...

编程日记 2023/9/27 9:47:53

STM32 UART通信协议 基础知识

通用异步收发器&#xff08;Universal Asynchronous Receiver/Transmitter)&#xff0c;通常称作UART&#xff0c;是一种串行、异步、全双工的通信协议。 在通信领域中&#xff0c;有两种数据通信方式&#xff1a;并行通信和串行通信。串口的数据传输是以串行方式进行的。串口在…...

编程日记 2023/9/27 9:46:51

nginx部署vue前端项目，访问报错500 Internal Server Error

前言 描述&#xff1a;当我配置好全部之后&#xff0c;通过 服务器 ip 地址访问&#xff0c;遇到报错信息&#xff1a;500 Internal Server Error。 情况说明 前提&#xff1a;我是通过Docker启动nginx容器&#xff0c;通过-v 绑定数据卷&#xff0c;将html文件和nginx.conf…...

编程日记 2023/9/27 9:45:50

@Excel注解

在 Java 开发中&#xff0c;Excel 注解通常用于标记实体类的字段&#xff0c;以指示与 Excel 文件的导入和导出相关的配置信息。 Excel 注解通常是自定义的注解&#xff0c;它可以包含多个属性&#xff0c;用于定义与 Excel 相关的配置&#xff0c;如字段的标题、顺序、数据格…...

编程日记 2023/9/27 9:42:47

解释器模式简介

概念&#xff1a; 解释器模式&#xff08;Interpreter Pattern&#xff09;是一种行为型设计模式&#xff0c;它用于定义语言的文法&#xff0c;并解析和执行给定语言中的表达式。该模式将每个表达式表示为一个类&#xff0c;并提供了一种方式来组合这些表达式以实现复杂的语句…...

编程日记 2023/9/27 9:40:45

图像识别技术在不同场景下有哪些应用？

图像识别技术在不同场景下的应用包括&#xff1a; 遥感图像识别&#xff1a;航空遥感和卫星遥感图像通常用图像识别技术进行加工以便提取有用的信息。该技术目前主要用于地形地质探查&#xff0c;森林、水利、海洋、农业等资源调查&#xff0c;灾害预测&#xff0c;环境污染监…...

编程日记 2023/9/27 9:37:43

阿里巴巴OceanBase介绍

前言 官网地址&#xff1a;https://www.oceanbase.com/ OceanBase是由蚂蚁集团完全自主研发的国产原生分布式数据库&#xff0c;始创于2010年。是全球唯一在 TPC-C 和 TPC-H 测试上都刷新了世界纪录的国产原生分布式数据库。 2010年&#xff0c;创始人阳振坤加入阿里巴巴&…...

编程日记 2023/9/27 9:36:42

leetcode 2560. 打家劫舍 IV

2560. 打家劫舍 IV 沿街有一排连续的房屋。每间房屋内都藏有一定的现金。现在有一位小偷计划从这些房屋中窃取现金。 由于相邻的房屋装有相互连通的防盗系统&#xff0c;所以小偷 不会窃取相邻的房屋 。 小偷的 窃取能力 定义为他在窃取过程中能从单间房屋中窃取的 最大金额 。…...

编程日记 2023/9/27 9:35:41

正点原子lwIP学习笔记——Socket接口TCP实验

1. Socket接口TCP Client配置连接 配置步骤如下所示&#xff1a; sin_family设置为AF_INET表示IPv4网络协议&#xff1b;sin_port为设置端口号&#xff1b;sin_addr. s_addr设置远程IP地址&#xff1b;调用函数Socket创建Socket连接&#xff0c; 注意该函数的第二个参数SOCK_…...

编程日记 2023/9/27 9:32:38

【Flink】

事件驱动型应用 核心目标&#xff1a;数据流上的有状态计算 Apache Flink是一个框架和分布式处理引擎&#xff0c;用于对无界或有界数据流进行有状态计算。 运行逻辑 状态 把流处理需要的额外数据保存成一个“状态”,然后针对这条数据进行处理,并且更新状态。这就是所谓的“…...

编程日记 2023/9/27 9:30:36

大数据Flink（九十一）：Array Expansion（数组列转行）和Table Function（自定义列转行）

文章目录 Array Expansion（数组列转行）和Table Function（自定义列转行）...

编程日记 2023/9/27 9:28:34

华为云云耀云服务器L实例评测｜华为云云耀云服务器L实例CentOS的存储和备份策略

1 华为云云耀云服务器L实例介绍 华为云云耀云服务器L实例是华为云计算服务中的一种虚拟云服务器&#xff0c;它提供了强大的计算资源&#xff0c;可以在云端运行各种应用程序和服务。 华为云服务器提供了多种实例类型&#xff0c;包括通用型、计算优化型、内存优化型等&#…...

编程日记 2023/9/27 9:27:33

Web自动化测试 —— 如何进行Selenium页面数据及元素交互？啊哈

前言&#xff1a; Web自动化测试是一种常用的测试方式&#xff0c;通过在浏览器中模拟用户操作以及与页面元素的交互&#xff0c;可以有效地检验页面的功能性以及稳定性。Selenium是一款流行的Web自动化测试工具&#xff0c;在本篇文章中&#xff0c;我们将介绍如何使用Seleni…...

编程日记 2023/9/27 9:26:32

点云从入门到精通技术详解100篇-基于全景图的室内场景点云补全方法（续）

目录 3.3 模型训练及实验评估 3.3.1 模型训练 3.3.2实验评估 4 基于自...

编程日记 2023/9/27 9:25:31

Debezium系列之：采集数据库数据实现对表指定的字段进行加密，下游实现对表加密后的字段进行解密

Debezium系列之：采集数据库数据实现对表指定的字段进行加密，下游实现对表加密后的字段进行解密 一、需求背景二、创建表三、深入理解加密算法的实现原理四、实现对表的指定字段加密五、插入数据六、消费Topic七、实现对加密的字段进行解密八、查看数据库一、需求背景 实际应用…...

编程日记 2023/9/27 9:19:26

Win10 cmd如何试用tar命令压缩和解压文件夹

环境&#xff1a; Win10 专业版 Microsoft Windows [版本 10.0.19041.208] 问题描述&#xff1a; Win10 cmd如何试用tar命令压缩和解压文件夹 C:\Users\Administrator>tar --help tar(bsdtar): manipulate archive files First option must be a mode specifier:-c Cre…...

编程日记 2023/9/27 9:17:25

最新AI写作系统ChatGPT源码/支持GPT4.0+GPT联网提问/支持ai绘画Midjourney+Prompt+MJ以图生图+思维导图生成

一、AI创作系统 SparkAi系统是基于很火的GPT提问进行开发的Ai智能问答系统。本期针对源码系统整体测试下来非常完美&#xff0c;可以说SparkAi是目前国内一款的ChatGPT对接OpenAI软件系统。那么如何搭建部署AI创作ChatGPT系统&#xff1f;小编这里写一个详细图文教程吧&#x…...

编程日记 2023/9/27 9:16:24

KubeSphere 容器平台高可用：环境搭建与可视化操作指南

Linux_k8s篇 欢迎来到Linux的世界&#xff0c;看笔记好好学多敲多打&#xff0c;每个人都是大神&#xff01; 题目&#xff1a;KubeSphere 容器平台高可用&#xff1a;环境搭建与可视化操作指南 版本号: 1.0,0 作者: 老王要学习 日期: 2025.06.05 适用环境: Ubuntu22 文档说…...

编程新知 2025/12/15 13:43:53

利用最小二乘法找圆心和半径

#include <iostream> #include <vector> #include <cmath> #include <Eigen/Dense> // 需安装Eigen库用于矩阵运算 // 定义点结构 struct Point { double x, y; Point(double x_, double y_) : x(x_), y(y_) {} }; // 最小二乘法求圆心和半径 …...

编程新知 2025/12/14 9:58:13

Lombok 的 @Data 注解失效，未生成 getter/setter 方法引发的HTTP 406 错误

HTTP 状态码 406 (Not Acceptable) 和 500 (Internal Server Error) 是两类完全不同的错误&#xff0c;它们的含义、原因和解决方法都有显著区别。以下是详细对比&#xff1a; 1. HTTP 406 (Not Acceptable) 含义&#xff1a; 客户端请求的内容类型与服务器支持的内容类型不匹…...

编程新知 2025/12/10 15:33:21

Mybatis逆向工程，动态创建实体类、条件扩展类、Mapper接口、Mapper.xml映射文件

今天呢&#xff0c;博主的学习进度也是步入了Java Mybatis 框架&#xff0c;目前正在逐步杨帆旗航。 那么接下来就给大家出一期有关 Mybatis 逆向工程的教学&#xff0c;希望能对大家有所帮助&#xff0c;也特别欢迎大家指点不足之处&#xff0c;小生很乐意接受正确的建议&…...

编程新知 2025/12/15 16:17:01

centos 7 部署awstats 网站访问检测

一、基础环境准备&#xff08;两种安装方式都要做&#xff09; bash # 安装必要依赖 yum install -y httpd perl mod_perl perl-Time-HiRes perl-DateTime systemctl enable httpd # 设置 Apache 开机自启 systemctl start httpd # 启动 Apache二、安装 AWStats&#xff0…...

编程新知 2025/12/14 17:15:31

FastAPI 教程：从入门到实践

FastAPI 是一个现代、快速&#xff08;高性能&#xff09;的 Web 框架&#xff0c;用于构建 API&#xff0c;支持 Python 3.6。它基于标准 Python 类型提示&#xff0c;易于学习且功能强大。以下是一个完整的 FastAPI 入门教程&#xff0c;涵盖从环境搭建到创建并运行一个简单的…...

编程新知 2025/10/16 7:51:26

1688商品列表API与其他数据源的对接思路

将1688商品列表API与其他数据源对接时&#xff0c;需结合业务场景设计数据流转链路&#xff0c;重点关注数据格式兼容性、接口调用频率控制及数据一致性维护。以下是具体对接思路及关键技术点&#xff1a; 一、核心对接场景与目标 商品数据同步 场景&#xff1a;将1688商品信息…...

编程新知 2025/11/30 16:55:32

C++中string流知识详解和示例

一、概览与类体系 C 提供三种基于内存字符串的流&#xff0c;定义在 <sstream> 中&#xff1a; std::istringstream&#xff1a;输入流&#xff0c;从已有字符串中读取并解析。std::ostringstream&#xff1a;输出流&#xff0c;向内部缓冲区写入内容&#xff0c;最终取…...

编程新知 2025/11/30 11:30:47

【Java学习笔记】BigInteger 和 BigDecimal 类

BigInteger 和 BigDecimal 类 二者共有的常见方法 方法功能add加subtract减multiply乘divide除 注意点&#xff1a;传参类型必须是类对象 一、BigInteger 1. 作用&#xff1a;适合保存比较大的整型数 2. 使用说明 创建BigInteger对象 传入字符串 3. 代码示例 import j…...

编程新知 2025/11/8 15:39:00

sipsak：SIP瑞士军刀！全参数详细教程！Kali Linux教程！

简介 sipsak 是一个面向会话初始协议 (SIP) 应用程序开发人员和管理员的小型命令行工具。它可以用于对 SIP 应用程序和设备进行一些简单的测试。 sipsak 是一款 SIP 压力和诊断实用程序。它通过 sip-uri 向服务器发送 SIP 请求&#xff0c;并检查收到的响应。它以以下模式之一…...

编程新知 2025/12/10 8:12:54