Now I show you the use of ? with space and ? Without space Now i will check other side by show ip int brief %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up Now let’s check show IP int brief after thisĪs we see the life is good for LAN 10.10.10.0/24īut i need to go and fix the other side that is i need to goĮnter configuration commands, one per line. %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up Now to solve the problem I must go to interface mode and give no shut Hint: You must always memorize this commands Since by default all interface are in shut down mode Ping and show does not work in config mode or interface modeĪs we see the ping works but I get no response why?

So I see the ping works only in user mode and privilege mode Sending 5, 100-byte ICMP Echos to 10.10.10.1, timeout is 2 seconds: R1(config-if)#ip address 10.10.10.100 255.255.255.0Īny time you see above it means you are in wrong mode soĪs we see Ping does not work in this mode End with CNTL/Z.Router(config)#hostname R1Īs we see I am in Interface mode of F0/0 or my router Enter configuration commands, one per line.