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To: "CIPE-list" <cipe-l,AT,inka,DOT,de>
Subject: Re: CIPE RH linux + Windows 2000 routing problem
From: "Hans Steegers" <hsx,AT,dds,DOT,nl>
Date: Fri, 19 Sep 2003 12:24:23 +0200
Reply-to: "Hans Steegers" <steegers,AT,steegers,DOT,nl>

My guess: the problem is the netmask of the cipcb0 interface on the linux
gateway:

Three possible solutions:
1. Give the cipcb0 interface on the linux gateway a proper netmask
255.255.255.0
OR:
2. Give the cipcb0 interface the same address/mask as eth1
OR:
3. Give the cipcb0 interface an address outside of the LAN subnet.

Hans Steegers

-----Original Message-----
From: Zkoumalek <zkoumalek,AT,seznam,DOT,cz>
To: cipe-l,AT,inka,DOT,de <cipe-l,AT,inka,DOT,de>
Date: Friday, September 19, 2003 11:44 AM
Subject: CIPE RH linux + Windows 2000 routing problem

>Hello,
>
>I am making CIPE VPN tunel and I want add one Win 2000 computer with public
IP address into our company's LAN. We have RH linux 7.1 as router where we
are runing CIPE 1.4.5. On another machine is Windows 2000 SP 4 installed and
there is CIPE-Win32 version 2.0-pre15. My tunnel works fine, I think - I can
ping left and right end of tunnel from Linux (ping 192.168.3.1)and Windows
(ping 192.168.1.2)too. But I can´t ping on another machine inside my network
(ie. 192.168.1.15) or inner interface in my linux router (ping 192.168.1.1).
I tested packets with tcpdump and ping and packets from RH linux router goes
into tunel fine, but ICMP requests from Win 2000 aren't coming back.
>
>Can anybody help me?
>
>Thank you very much.
>T. Zkoumalek
>
>My setup is:
>router (ifcfg-cipcb0):
>DEVICE=cipcb0
>ONBOOT=no
>USERCTL=yes
>MYPORT=5000
>PEER=win2000.public.ip:5000
>ME=rh-linux.public.ip:5000
>PTPADDR=192.168.3.1
>IPADDR=192.168.1.2
>PING=5
>route add -net 192.168.3.0 netmask 255.255.255.0 dev cipcb0
>
>routeru's interfaces:
>eth0:rh-linux.public.ip
>eth1:192.168.1.1
>cipcb0:   Link encap:IPIP Tunnel  HWaddr
>inet addr:192.168.1.2  P-t-P:192.168.3.1  Mask:255.255.255.255
>UP POINTOPOINT NOTRAILERS RUNNING NOARP  MTU:1442  Metric:1
>
>Win2000 (CIPE Win32):
>Local IP address: win2000.public.ip:5000
>Peer IP address: rh-linux.public.ip:5000
>Local PTP address: 192.168.3.1
>Peer PTP address: 192.168.1.2
>route add 192.168.1.0 mask 255.255.255.0 192.168.3.1 metric 1 if 2
>
>Win 2000's interfaces:
>1. win2000.public.ip
>2. 192.168.3.1 (CIPE Win32 interface)
>
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