OpenWRT routing

[Bruce Dawson]

I figured out a solution.

I needed to do the following:

# iptables -t filter -A FORWARD -p all -d 192.168.56.0/24 -j ACCEPT

Which had to be done on the router. (Looks like those routers are a bit
more secure with OpenWRT.)

After doing the above, I then discovered that I needed return routes set
on the remote network too! Duh.

- --Bruce

Bruce Dawson wrote:
> I've recently loaded a Linksys box with OpenWRT (version WhiteRussian).
> And I've been able to get everything working.
> 
> However, when I try to set up a ppp connection between the local Linksys
> box (running OpenWRT) and a remote box, I can ping the remote box from
> the local box, but I can't ping the remote box from the network inside
> the local box.
> 
> The routing table as reported by OpenWRT's route command is:
> 
> root at DiamondRubyLNF:/etc/init.d# route
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> 192.168.56.126  *               255.255.255.255 UH    0      0        0 ppp0
> 172.31.1.0      *               255.255.255.0   U     0      0        0
> vlan1
> 192.168.56.0    192.168.56.125  255.255.255.0   UG    0      0        0 ppp0
> 192.168.74.0    *               255.255.255.0   U     0      0        0 br0
> default         172.31.1.1      0.0.0.0         UG    0      0        0
> vlan1
> default         192.168.74.1    0.0.0.0         UG    0      0        0 br0
> root at DiamondRubyLNF:/etc/init.d# ping 192.168.56.3
> PING 192.168.56.3 (192.168.56.3): 56 data bytes
> 64 bytes from 192.168.56.3: icmp_seq=0 ttl=63 time=145.3 ms
> ...
> 
> The "local network" (inside the local box) is 192.168.74.0/24. The
> "remote network" (inside the remote box) is 192.168.56.0/24.
> 
> Again, I can ping between the two routers, and ping from the local
> router into the remote network, but I can't ping from the local network
> into the remote network.
> 
> Does anyone have any ideas what I need to do to accomplish this?