how can SSH damage settings?!?

From: Beowulf (beowulf_at_nowhere.com)
Date: 03/27/05 

Date: Sun, 27 Mar 2005 07:53:59 -0600

When my brother tries using ssh to connect to my computer, it does not work
for him (stalled command prompt, nothing happens, no connection) and the
worst part is it then causes him to lose his internet connection. It messes
up his WAN/router connection such that he has to go back into his router
and set his connection type to PPPoe to regain WAN net access. I just can
not fathom how issuing a ssh command (e.g. 'ssh 61.10.74.91') could do
anything to affect one's internet (WAN) connection?!?!? How can this occur?

We are both using Mandrake Linux 9.2. My system works just fine with ssh, I
have sshd server running, and I can so an ssh to myself just fine, and I
have done ssh to remote computers and from remote computers to my computer
just fine.

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