sum1 wrote:
I'm not sure the provider will work with a PPP connection I think it is all HDLC (maybe this is apples and oranges though).
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You can configure either PPP or HDLC encapsulation, as long as it matches the provider you're good.
Sounds like the 3200 might not be able to go directly to the LAN because it only has one ethernet port.
Is there a way to have a virtual router/firewall in the 3200 allow a connection the the LAN?
Assuming the 3200 can't, can you confirm this configuration should work for public internet access for our LAN:
Public Internet<->
Provider's Edge<->
3200 T1 port<->
3200 Ethernet port using first usable IP address from the provider<->
Basic Firewall/Router WAN port with second usable IP address from provider<->
Basic Firewall/Router Ethernet Port<->
LAN
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If you are assigning private IPs to the LAN, you can NAT directly to the PPP or HDLC serial interface IP and not need a routed LAN block from the ISP. The single IP on the serial link can be both the remote management for the 3200 and the outside NAT for the LAN. The only potential conflict would be if a server on the LAN requires outside telnet, ssh, or web access you would need to use a different port for the Adtran.
Alternatively, if the provider gives you a routed LAN block such as a /29, you can assign an IP in that range as a loopback on the 3200 and anchor the NAT to that loopback or any IP in that block.
You can also use VLANs on the Ethernet interface to create multiple logical Ethernet interfaces on the one physical, and then break them out to physical interfaces with a switch.
In other words, yes it's very possible and there are multiple ways to do it. I wouldn't recommend bridging here.
