cannot login to routers responding with extra blank lines

Holger Friedrich — Thu, 29 Jan 2004 17:38:59 -0000

Two Cisco 2503 routers running IOS 11.0 (21) and 11.0
(22), respectively, responded with an extra blank line to
each of the commands "terminal length 0" and "terminal
no editing." This caused the LoginPostProcessIos()
function to abort the login to those routers.

A possible fix is to lift the restriction to up to three \r or
\n characters in SendCmd()'s handling of
the "nofeedback" pattern. Login completes successfully
when that restriction is fully lifted, but it should probably
work if one were to simply extend the limit to four \r or
\n characters. I have sent a version of the affected
script with my suggested change to Mr Ziegelbein at this
users.sourceforge.net e-mail address.

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cannot login to routers responding with extra blank lines