I'm curious about one thing. I just got ISDN at work at am experiencing
the following problem. This is probably ISP-related, but I'm really
curious as to what could be causing this. Basically, I can get out of my
network onto the net, but I can't get into my network.
host on internet ------ ISP ------- ISDN router --- host B
No host on inet can connect to B: no route can be found. B can connect to
internet, no problem. If B telnets to an external host, then this host
can see B, but not otherwise. This happens even if B is the router. That
is, no host on inet can see the router, unless communication from behind
the router has already been initiated.
Traceroute from any host on the net to B (or router) endlessly jumps
between 3 IPs at the ISP, however, if I telnet out of B and then do the
same traceroute, it works ok.
This is a curious non-symmetric problem. What kind of routing screw-up
could lead to this? Just curious before the ISP fixes this.
mk
-------------------------------------------------------------
Says little, thinks less, and does - nothing at all, faith.
George Farquhar
-------------------------------------------------- 801/1424 -
Martin Krzywinski
System Administrator
Genome Sequence Center
BC Cancer Research Center
601 West 10th Avenue
Vancouver, BC V5Z 1L3
tel: (604) 415-7184
fax: (604) 415-7192
http://www.cigenomics.bc.ca
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