From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Garvey Subject: Re: Requestion for help with GRE tunnel Date: Tue, 18 Jun 2002 08:59:53 -0700 Sender: netfilter-admin@lists.samba.org Message-ID: <20020618085953.C2662@inxservices.com> References: <20020618063945.A2662@inxservices.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <20020618063945.A2662@inxservices.com>; from tmwg-netfilter@inxservices.com on Tue, Jun 18, 2002 at 06:39:45AM -0700 Errors-To: netfilter-admin@lists.samba.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: netfilter@lists.samba.org Thanks for the fast response. I remembered that I have a spare IP on an ADSL, so changed the setup as follows, based on your mention of a requirement for a router. This setup still lets me experiment with both computers in the same room, but is more similar to the final desired setup: eth0: 192.168.2.2 ---------- gigE switch ------ eth0: 192.168.1.12 ------------------------ ---------------------- | salesns.inxsales.lan | | ns.inxservices.com | ------------------------ ---------------------- eth1: 63.193.79.20 --------- 100 switch ------- eth2: 63.193.79.19 | eth1: 66.134.162.140 ADSL modem | | SDSL modem/hub | | ------- internet -------- GRE tunnel (withvan): GRE tunnel (withsales): 63.193.79.20 -> 63.193.79.19 63.193.79.19 -> 63.193.79.20 IP: 192.168.3.1 IP: 192.168.3.2 ip route add 192.168.1.0/24 dev withvan ip route add 192.168.2.0/24 dev withsales I can ping 63.193.79.19 from 63.193.79.20. I can ping 63.193.79.20 from 63.193.79.19. I cannot ping 192.168.1.12 from salesns. Here are the commands I'm using: 192.168.1.12: /sbin/ip link set dev eth0 up mtu 1500 /sbin/ip address add 192.168.1.12/24 broadcast 192.168.1.255 dev eth0 /sbin/ip link set dev eth1 up /sbin/ip address add 66.134.162.140/29 broadcast 66.134.162.143 dev eth1 /sbin/ip link set dev eth2 up /sbin/ip address add 63.193.79.19/29 broadcast 63.193.79.23 dev eth2 /sbin/ip link set dev lo up /sbin/ip address add 127.0.0.1/8 broadcast + dev lo /sbin/ip route add default via 63.193.79.17 dev eth2 /sbin/ip tunnel add withsales mode gre remote 63.193.79.20 local 63.193.79.19 ttl 255 dev eth0 /sbin/ip link set withsales up /sbin/ip address add 192.168.3.2/24 broadcast + dev withsales /sbin/ip route add 192.168.2.0/24 dev withsales 192.168.2.2: /sbin/ip link set dev eth0 up mtu 1500 /sbin/ip address add 192.168.2.2/24 broadcast 192.168.2.255 dev eth0 /sbin/ip link set dev eth1 up /sbin/ip address add 63.193.79.20/29 broadcast 63.193.79.23 dev eth1 /sbin/ip link set dev lo up /sbin/ip address add 127.0.0.1/8 broadcast + dev lo /sbin/ip route add default via 63.193.79.20 dev eth1 /sbin/ip tunnel add withvan mode gre remote 63.193.79.19 local 63.193.79.20 ttl 255 dev eth0 /sbin/ip link set withvan up /sbin/ip address add 192.168.3.1/24 broadcast + dev withvan /sbin/ip route add 192.168.1.0/24 dev withvan