Hi, I'm new in networking field, and just have a question related to router.
Usually, for home network, I will have modem connect to Internet (WAN) port on the home router, and then use the ethernet ports on the router to connect Access point or end devices like PC.
However, why I don't see the such Internet (WAN port) on some business routers. For example, Cisco router 1941, I only see 2 RJ-45 port GE0/0 and GE0/1, which are Ethernet ports. In this case for example, how can I connect a modem to this router for internet access?
Thanks!
