Dear all:
I have a network configuration as in the link:
http://homepage.ntu.edu.tw/~r93942033/network.png
and I establish one GRE tunnel on both ADSL and WLAN. For the tunnel on
ADSL, I use the following commands:
==at Router 1==
ip tunnel add neta mode gre remote 10.0.1.2 local 10.0.1.1 ttl 255
ip link set neta up
ip addr add 192.168.1.3 dev neta
==at Router 2==
ip tunnel add netb mode gre remote 10.0.1.1 local 10.0.1.2 ttl 255
ip link set netb up
ip addr add 192.168.2.3 dev netb
And for the tunnel on WLAN:
==at Router 1==
ip tunnel add neta_wlan mode gre remote 10.0.0.2 local 10.0.0.1 ttl 255
ip link set neta_wlan up
ip addr add 192.168.1.4 dev neta_wlan
==at Router 2==
ip tunnel add netb_wlan mode gre remote 10.0.0.1 local 10.0.0.2 ttl 255
ip link set netb_wlan up
ip addr add 192.168.2.4 dev netb_wlan
Then I set the routing table:
==at Router 1==
ip route add 192.168.2.0/24 dev neta_wlan
==at Router 2==
ip route add 192.168.1.0/24 dev netb_wlan
Using this configuration, the NB 1 and NB 2 can ping each other successfully.
My Problem is:
How can I make some traffic go through ADSL tunnel and others through
WLAN tunnel?
For example, let TCP traffic to through WLAN tunnel and ICMP go through
ADSL tunnel?
I have tried the commands:
==at Router 1==
iptables -t mangle -A PREROUTING -p icmp -j ROUTE --oif neta
==at Router 2==
iptables -t mangle -A PREROUTING -p icmp -j ROUTE --oif netb
or ==at Router 1==
iptables -t mangle -A FORWARD -p icmp -j ROUTE --oif neta
==at Router 2==
iptables -t mangle -A FORWARD -p icmp -j ROUTE --oif netb
But it fails, NB1 cannot ping NB2 (request time out).
How can I solve it?
Thanks for your answering!
