Hi,
I'm using a linux box to connect two parts of our network. The first part of the network is IP-over-ATM (CLIP) which is coming into an Interphase ATM card in the Linux box. This appears to work fine, as "ifconfig atm0" shows the number of incoming packets incrementing correctly. The second half is normal wired Ethernet, and this works fine too, "ifconfig eth0" is good. My problem is getting the two halves talking to each other. What I want is for this box to be "transparent" to the network, all the IP traffic coming into the ATM card should be sent out of the ethernet card.
The original config of the ATM side was IP-over-Ethernet-over-ATM (RFC2684), and this was easy, I just created an ethernet bridge between the two (using br2684ctl and brctl) and everything worked nicely. I can't do this now, however, because the ethernet layer is missing from the ATM side. What I need is the equivalent functionality of an ethernet bridge at the IP layer, but I don't know what it's called. Is this IP forwarding? Routing? Do I need to use iptables? I only started learning about all this last week, so I don't have much of the right vocabulary which makes searching for answers difficult...
Thanks for your help,
Chris
I'm using a linux box to connect two parts of our network. The first part of the network is IP-over-ATM (CLIP) which is coming into an Interphase ATM card in the Linux box. This appears to work fine, as "ifconfig atm0" shows the number of incoming packets incrementing correctly. The second half is normal wired Ethernet, and this works fine too, "ifconfig eth0" is good. My problem is getting the two halves talking to each other. What I want is for this box to be "transparent" to the network, all the IP traffic coming into the ATM card should be sent out of the ethernet card.
The original config of the ATM side was IP-over-Ethernet-over-ATM (RFC2684), and this was easy, I just created an ethernet bridge between the two (using br2684ctl and brctl) and everything worked nicely. I can't do this now, however, because the ethernet layer is missing from the ATM side. What I need is the equivalent functionality of an ethernet bridge at the IP layer, but I don't know what it's called. Is this IP forwarding? Routing? Do I need to use iptables? I only started learning about all this last week, so I don't have much of the right vocabulary which makes searching for answers difficult...
Thanks for your help,
Chris
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