No Int with this interface although ping/telnet gives successful

CCIE_2011

Post title Correction

"No Int with this IP although ping/telnet gives successful"

Hi all ....
I am a bit confused here. I'm ping the ip X.X.X.X and get a successful results. I issue a telnet to IP X.X.X.X it logs me into a switch A.

However, When i issue the command
"show ip interface brief"
I don't see any interface assigned with IP X.X.X.X

Can this really happen ????

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Comments

tech-airman

CCIE_2011 wrote: »

Post title Correction

"No Int with this IP although ping/telnet gives successful"

Hi all ....
I am a bit confused here. I'm ping the ip X.X.X.X and get a successful results. I issue a telnet to IP X.X.X.X it logs me into a switch A.

However, When i issue the command
"show ip interface brief"
I don't see any interface assigned with IP X.X.X.X

Can this really happen ????

CCIE_2011,

When you mention "...ping the ip X.X.X.X..." what kind of networking device are you pinging from?

CCIE_2011

I'm pinging the same switch "A" that i telnet later.
the command is also issue switch "A"

extra info, switch A is 6500 with sup720 engine

jason_lunde

you probably have a redundancy protocol running with virtual ip's; like hsrp, vrrp, glbp (which wont show up in your ip int brief command).

Try the
show run | i [ip address]

see if you get anything.

networker050184

jason_lunde wrote: »

you probably have a redundancy protocol running with virtual ip's; like hsrp, vrrp, glbp (which wont show up in your ip int brief command).

Try the
show run | i [ip address]

see if you get anything.

Thats what I was thinking as well. You could also do a sho ip route for that ip and it will show what interface it is connected to.

CCIE_2011

hmmmm maybe... i didn't check that.

I'll look it up tomorrow

tech-airman

CCIE_2011 wrote: »

I'm pinging the same switch "A" that i telnet later.
the command is also issue switch "A"

extra info, switch A is 6500 with sup720 engine

CCIE_2011,

I didn't ask what your ping destination was, I'm asking what networking device was the SOURCE for the ping command.

CCIE_2011

the source device is a 6500 switch.

I found it. it is the HSRP interface.

thanks for help ppl