From: Kevin Wittfoth (Kevin_at_shortstravel.com)
Date: Fri Nov 08 2002 - 18:47:46 CET
I have a routing problem with Freeswan. I have a remote office connected to
the internet via cable connection. I have created a tunnel to the main
office. I can pass traffic from the remote LAN to the main office LAN
without any problems. I now want to route a certain network address space
from the remote office to that main office and then through our firewall to
the internet. When doing a tcpdump of the ipsec interface, I get this
response, "icmp: time exceeded in-transit [tos 0xc0]" and "udp 12 [ttl 1]".
What's udp 12? That port is not assigned to anything that I know of or maybe
I am misinterpreting
I then did a dump of the eth1 interface at the main office that points to
the internal LAN that I can pass traffic through to from the remote office
and I see the same entries. I can't seem to get the Linux machine to forward
the request to the next hop as specified by the routing table. Come in
IPsec0 go out eth1 to the main office internal LAN gateway. It is getting
dropped at the eth1 interface from what I can see and returns with the
errors above. Can anyone tell me what these mean?
Thanks!
Kevin
kevin_at_shortstravel.com
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