When you have two "NAT routers". Whether double NAT or not. wall--RJ11--router-modem(RM)---LAN-WAN--router(R)----LAN--comps (A Router-Modem(RM) so no WAN port, And a router R which has a WAN port, and ...
The network router continues to evolve as traffic becomes greater and more varied. Here’s a roundup of our most recent coverage about routers from Cisco and others, as well as about router technology, ...