I have a linux routerbox with 3 nics.: ppp0 goes to the internet service provider eth1 serves as gateway to a subnet eth2 serves as gateway to another subnet I want LAN clients from subnet eth2 to be able to access a Samba Server box located on subnet eth1 I have tried making a static route using --- route -n add <destination> <gateway> but all I get no matter what I try is: SIOCADDRT: No such device Here's my route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 204.60.4.34 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 64.204.68.128 0.0.0.0 255.255.255.248 U 0 0 0 eth0 192.168.170.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 192.168.169.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo 0.0.0.0 204.60.4.34 0.0.0.0 UG 0 0 0 ppp0 As a result of trying out a few extra iptables rules, I can now ping the eth1 gateway from the eth2 subnet clients, but I still cannot ping/reach the Samba server box on the eth1 subnet. Here's the rules I've added in hopes of making a proper path from subnet eth2 to eth1: $IPTABLES -t nat -A PREROUTING -p tcp -i eth1 --source 192.168.170.0/24 -j DNAT --to-destination 192.168.169.2 $IPTABLES -t nat -A PREROUTING -p udp -i eth1 --source 192.168.170.0/24 -j DNAT --to-destination 192.168.169.2 and $IPTABLES -t filter -A INPUT -i eth1 --source 192.168.170.0/24 -j ACCEPT and $IPTABLES -t filter -A FORWARD -i eth1 --source 192.168.170.0/24 -j ACCEPT Again, to be clear, clients on subnet eth2 can ping the gateway nic (eth1), but cannot ping the samba box located on subnet eth1. If I can just ping that box, I can config Samba the rest of the way. So I'm not sure if what I need for this is to create a static route, or whether iptables rules are all I need. Thank you for your time and patience in reading this post. Regards, Mike
