problem telnet terminates connections

Unanswered Question
Sep 8th, 2008
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Hi all,

I have enabled ssh on a router and wanted to have both telnet and ssh for a while. The problem is that when i telnet to the router it shows three times the login prompt username:


and disconnects!


eg. <LOGIN BANNER>


Username:

Username:

Username:


ssh connects correctly though! Even though i disabled SSH it stills cant open a telnet connectivity.


configuration follows:


line vty 0 4

exec-timeout 30 0

login local

password 7 .....

transport inpute telnet ssh

line vty 5 15

exec-timeout 30 0

login local

password 7 .....

transport inpute telnet ssh


NO acls in!


Debugging telnet follows:

Sep 8 11:19:35.276 EET: Telnet4: 1 1 251 1

Sep 8 11:19:35.276 EET: TCP4: Telnet sent WILL ECHO (1)

Sep 8 11:19:35.276 EET: Telnet4: 2 2 251 3

Sep 8 11:19:35.276 EET: TCP4: Telnet sent WILL SUPPRESS-GA (3)

Sep 8 11:19:35.276 EET: Telnet4: 80000 80000 253 24

Sep 8 11:19:35.276 EET: TCP4: Telnet sent DO TTY-TYPE (24)

Sep 8 11:19:35.276 EET: Telnet4: 10000000 10000000 253 31

Sep 8 11:19:35.276 EET: TCP4: Telnet sent DO WINDOW-SIZE (31)


edit: I've noticed that if i close ssh connection i can telnet to the router...but second telnet is not permitted!(even though telnet service is ok) because i see in the show line that the connection opens and closes. SSH ofcourse no problem!


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mikebrsnet Mon, 09/08/2008 - 00:47
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I think i fixed it!Well i tried to separate the access to the vty lines.


I configured line vty 5 15 for input telnet only

and the rest 0 4 for ssh.


Now it seems to work! even though i cant understand why did open new connections!

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