Hello Michele,
: |194.243.12.15 (eth0) SERVER WEB (eth1) 194.184.12.85 |
: adsl2
: 194.184.12.81
So, you have a server with two ADSL connections.
+-----------------------------------+
194.243.12.1 -----| 194.243.12.15 SRV 194.184.12.85 |----- 194.184.12.81
eth0 +-----------------------------------+ eth1
You are handling the inbound packets properly, but if you were to use
tcpdump on eth0, you'd see reply packets (to your ping) leaving on eth0
with a source address of 194.184.12.85.
This is not an uncommon thing to overlook when dealing with routing
systems--there is a path in to the box, and you have correctly identified
how to handle that, but you need to tell the box how to send the outbound
packet.
: #for f in /proc/sys/net/ipv4/conf/*/rp_filter; do echo 0 > $f; done
Yes, you need to do this!
: #echo 1 > /proc/sys/net/ipv4/route/flush
This is equivalent to "ip route flush cache", and should be performed
after altering the routing tables or the RPDB.
: #iptables -A PREROUTING -i eth1 -p -t mangle -j MARK --set-mark 1
: and iproute:
: #echo 201 ruteradsl2 >>/etc/iproute2/rt_tables
: #ip rule add fwmark 1 table routeradsl2
: # ip rule ls
: 0: from all lookup local
: 32765: from all fwmark 1 lookup routeradsl2
: 32766: from all lookup main
: 32767: from all lookup default
: # /sbin/ip route add default via 194.184.12.81 dev eth1 table routeradsl2
Try adding the following:
# ip rule add from 194.184.12.85 lookup routeradsl2
If you want to see another full example, please consult the section on
multiple Internet connections in the linux-ip.net documentation.
http://linux-ip.net/html/adv-multi-internet.html
Good luck,
-Martin
--
Martin A. Brown --- SecurePipe, Inc. --- mabrown@xxxxxxxxxxxxxx
