[LARTC] Routing between two RFC1918 networks.

[Dave Hunt]

Title: Message

 

Hi all,

 

I've two RFC1918 networks with a RedHat Linux 7.3 box in the middle.

They are 10.4.2.0 and 10.4.7.0. There are a couple of boxes on each network,

but I can't ping a box on one network from the other.

 

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
217.78.4.128    *               255.255.255.192 U     0      0        0 eth2
10.4.7.0        *               255.255.255.0   U     0      0        0 eth3
10.4.2.0        *               255.255.255.0   U     0      0        0 eth0
192.168.200.0   *               255.255.255.0   U     0      0        0 eth1
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
default         217.78.4.190    0.0.0.0         UG    0      0        0 eth2

The above is the routing table of the machine. All iptables policies are set to accept.

I can access the internet fine from the 192 and 10 networks, as masquerading is enabled on eth2.

However, I do not want to masquerade the address from 10.4.2.0 onto 10.4.7.0

and vice-versa.

Am I missing something obvious?

Cheers,

Dave.