[pptp-server] GRE through ipchains masquerade
Brian Haney
brian at ibsystems.com
Thu Apr 20 19:55:08 CDT 2000
I'm sure this must be a frequently-asked-question, but I could not
find the answer in the HOWTOs.
I am running RedHat Linux 6.0 as a gateway between my home LAN and a
PoPToP server at work. I made sure the router at work would permit
all IP traffic through to the PoPToP server (a RedHat 6.1 box). My
Windows NT 4.0 RAS client is on a private (192.168.1.0) network behind
the RedHat 6.0 gateway.
( )
NT client ----- RH6.0 Gateway ----- ( INTERNET ) ------
router ------ RH6.1 PoPToP
192.168.1.129 ( )
server
209.35.159.52
The RH 6.0 gateway is using ipchains to masquerade my home network.
I have added the rules to accept and forward TCP port 1723 and IP
protocol 47.
A tcpdump on the PoPToP server and the public interface of the Gateway
shows that the Gateway is throwing ICMP no-route packets for proto47
back to the PoPToP server.
What am I missing?
TIA.
--
Brian Haney VP Engineering/CTO
brian at ibsystems.com Internet Business Systems, Inc.
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