vty 4 access

[ccif1024]

I have different login accounts for each VTY 0 , 1 , 2 etc.., but my question is how do I ensure that I am telnetting to that particular VTY, let's sat vty 4?

 

[tecnikall]

hello there, I am afraid that you will not be able to slect which vty to telnet into it... vty 0 4 should be used as a pool and have a common telent password... Cheers.

 

[lui3]

you can't decide which vty you telnet into the router does that for you based on which one is available. technikall is correct you have to use the config command

line vty 0 4
username xxxxxx password xxxxxx
login


to specify login information for the telnet lines.

laterz

 

[NMCman]

You have to set the password to be the same for the interfaces. You can however if thewse get tied up set another vty lin say 5-7 with another password. If you cant get through because the 0-4 lines are tied up by putting another password on the other lines you can still gain access. There is nothing to stop you configuring more VTY lines thatn the cisco default of 0-4.

 

[ccif1024]

Thanks to the responders... I did a little more checking as to why we do this for routers we manage... it's like keeping one line for yourself on a conference call with limited lines available.
Yes -you can have different passwords...

line vty 0 3
login
password 1234pass
line vty 4
login
password dontuse

In a device that we access in addition to the customer, we put in a backdoor(vty 4) so that in the event of a problem in a router with the customer, Engineers, other vendors, all telnetted in (or through), they could run out of connections, but I with my different password, could still get in. If the '1234pass' didn't work because it was "full", I could use 'dontuse'.

I could see this being handy for a router doubling as a terminal server.

 

[wybnormal]

Actually there is a "hack" to do this. Put the first 3 vty's into a ACL that is not normally used.. ie.. logging in from a server IP address (or something). When you go to login from anywhere else, you would start with vty 4 since it's not in the ACL.

I did this once a long while back and I really dont remember why we did this ;-)

MikeS


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