[CUWiN] circular route

simon-cuw at uc.org simon-cuw at uc.org
Thu Jan 19 23:07:56 CST 2006


I have the following setup:
(internet)--(Router A)--<LAN A>--(Node A)~~~(Node Z)--<LAN Z>

- Router A provides DHCP for LAN A
- Node Z provides DHCP for LAN Z
- A computer on LAN A has a static route for LAN Z pointing to Node A'a
  address on LAN A.

I can ping from computesr on LAN Z to LAN A, but trying to do the
opposite, pinging form LAN A to LAN Z seems to reveal a circular route
somewhere. Any ideas how I could start troubleshooting this?


Node A =, on, internet/dhcp from linksys rtr
Node Z =, on, dhcp from cuw node

mylaptop_on_A$ sudo route add -net gw

mylaptop_on_A$ ping
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=62 time=7.12 ms
64 bytes from icmp_seq=2 ttl=62 time=4.37 ms
64 bytes from icmp_seq=2 ttl=62 time=4.37 ms

mylaptop_on_A$ traceroute
traceroute to (, 30 hops max, 38 byte packets
 1 (  0.686 ms  0.554 ms  0.509 ms
 2 (  2.618 ms  2.381 ms  3.008 ms
 3  * * *

Simon P. Ditner

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