IOS Features & Management
Troubleshooting: How to Get Interface Summaries in IOS
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To quickly get a summary of interfaces and addressing information from IOS you could use one of the following:
Router#sh run | include interface|ip address
interface Loopback0
ip address 10.200.200.11 255.255.255.255
interface FastEthernet0/0
ip address 10.1.1.1 255.255.255.0
interface BRI0/0
no ip address
interface Serial1/0
no ip address
interface Serial1/0.1 multipoint
ip address 172.31.1.1 255.255.255.0
interface Serial1/0.2 multipoint
ip address 172.31.11.1 255.255.255.0
interface Serial1/1
ip address 10.1.0.1 255.255.255.0
interface Serial1/2
no ip address
interface Serial1/3
no ip addressRouter#sh int | include is up|Internet
FastEthernet0/0 is up, line protocol is up
Internet address is 10.1.1.1/24
Serial1/0 is up, line protocol is up
Serial1/0.1 is up, line protocol is up
Internet address is 172.31.1.1/24
Internet address is 172.31.11.1/24
Serial1/1 is up, line protocol is up
Internet address is 10.1.0.1/24
Loopback0 is up, line protocol is up
Internet address is 10.200.200.11/32Router#sh ip int brief | exclude unassigned
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 10.1.1.1 YES NVRAM up up
Serial1/0.1 172.31.1.1 YES NVRAM up up
Serial1/0.2 172.31.11.1 YES NVRAM administratively down down
Serial1/1 10.1.0.1 YES NVRAM up up
Loopback0 10.200.200.11 YES NVRAM up up When starting a lab with pre-configured routers and switches the above commands are very useful to get an overview of interfaces and addressing. I use this when doing labs with troubleshooting sections. If your Lab contains a troubleshooting section with preconfigured routers or switches, I would use the above the commands to verify that the configuration matches the topology of the lab.
Now back to labs!
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