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What is this port 2001 used for on the routers??

Unanswered Question
Jul 8th, 2002
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A security information officer is doing port scans on our network. Various models of routers keep showing port 2001 open. I need an explanation of what this port is used for and its use for potential security hacks.


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Anonymous (not verified) Mon, 07/08/2002 - 14:24
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There are TCP ports available for reverse

telnet connectios to physical lines on

a NAS (usually); so port 2001 would be

for line 1 of the NAS.


You can disable this entirely with the

line command .


Or, you can use AAA:


http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/...


The ports that are potentially usable are here:


http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1916.htm#xtoci...



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