Virtual Server via IP Tunneling

[chronotech]

Hi,

I have installed an Ipvs tun like on http://www.linuxvirtualserver.org/VS-IPTunneling.html
I have 2 real server already working but i cant add a new server.

Here is my procedure : (i test on pop3)

1 - First on IP virtual server :

# ipvsadm -A -t xxx.xxx.xxx.xxx:pop3 -s wlc
# ipvsadm -a -t xxx.xxx.xxx.xxx:pop3 -r mx1.domain.tld:pop3 -i -w 1

2 - On the new real server, i add a script to /etc/conf.d/local.start :

# vi /root/lvs.sh

#!/bin/sh
echo 1 > /proc/sys/net/ipv4/ip_forward

ifconfig tunl0 xxx.xxx.xxx.xxx netmask 255.255.255.255 broadcast xxx.xxx.xxx.xxx up

ifconfig eth0 mtu 1200
ifconfig tunl0 mtu 1300 # fixe le mtu du tunnel (100 de plus pour les paquet suppl)


3 - On the new real server, i add to /etc/sysctl.conf

net.ipv4.conf.tunl0.arp_ignore = 1
net.ipv4.conf.tunl0.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.ip_forward = 1
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.all.rp_filter = 0

4 - i reboot real server

5 - test:

on cmd(windows), i make "telnet xxx.xxx.xxx.xxx 110" ----> timeout
but, at the same time, i make ifconfig on real server and i see RX bytes on tun10 (tunnel) increasing !!

Does anyone has an idea about my problem ?

[richard.scott]

Did you run this on the IPVS server:

[chronotech]

i don't run # echo 1 > /proc/sys/net/ipv4/ip_forward on IPVS server :