![static routing configuartion on cisco router using serial port. | Learn Linux CCNA CEH IPv6 Cyber-Security Online static routing configuartion on cisco router using serial port. | Learn Linux CCNA CEH IPv6 Cyber-Security Online](https://linuxtiwary.files.wordpress.com/2015/03/staic-routing-using-serial-port.png)
static routing configuartion on cisco router using serial port. | Learn Linux CCNA CEH IPv6 Cyber-Security Online
Refer to the exhibit. The command “show ip interface brief” has been issued on Router “R1”. The result is shown in the exhibit, what is true about the interfaces shown in the
![Interface and Line Numbers in Cisco Routers - DavidontheCloud.com - David Papkin Technical Resources Interface and Line Numbers in Cisco Routers - DavidontheCloud.com - David Papkin Technical Resources](http://www.cisco.com/c/dam/en/us/support/docs/routers/3725-multiservice-access-router/62611-62611a.gif)
Interface and Line Numbers in Cisco Routers - DavidontheCloud.com - David Papkin Technical Resources
![cisco - Whats's the function of a loopback interface in routing protocols? - Network Engineering Stack Exchange cisco - Whats's the function of a loopback interface in routing protocols? - Network Engineering Stack Exchange](https://i.stack.imgur.com/TLEFV.png)