[nmglug] iptables / routing question,

[Andres Paglayan]

Hi,

I am trying to route all incoming trafic in eth0 (192.168.1.1)  
directed to 192.168.50.0/24 through eth2 (192.168.50.1)


I did:

route add -net  192.168.50.0/24  gw 192.168.50.1

and my route -n looks like

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref     
Use Iface
10.12.223.2     0.0.0.0         255.255.255.255 UH    0      0         
0 tun0
192.168.50.0    192.168.50.1    255.255.255.0   UG    0      0         
0 eth2
192.168.50.0    0.0.0.0         255.255.255.0   U     0      0         
0 eth2
192.168.2.0     0.0.0.0         255.255.255.0   U     0      0         
0 eth1
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0         
0 eth0
65.19.28.0      0.0.0.0         255.255.255.0   U     0      0         
0 eth3
10.12.223.0     10.12.223.2     255.255.255.0   UG    0      0         
0 tun0
0.0.0.0         65.19.28.1      0.0.0.0         UG    0      0         
0 eth3


the machine also has: eth1 and eth3

2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
     inet 192.168.1.1/24 brd 192.168.1.255 scope global eth0
3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
     inet 192.168.2.1/24 brd 192.168.2.255 scope global eth1
4: eth2: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
     inet 192.168.50.1/24 brd 192.168.50.255 scope global eth2
5: eth3: <BROADCAST,UP> mtu 1500 qdisc htb qlen 1000
     inet 65.19.28.123/24 brd 65.19.28.255 scope global eth3

I can ping 192.168.50.254 host from within the router,
but I cannot from any other pc in the subnet.

I think I should add an iptables fordwarding
(the iptables at this host is fairly complex and my guess is the  
traffic is being dropped somewhere)

I can use some reading of man iptables,
but..., I know there's more than one lurker who will know the line,

Thank you all,