How to Connect 2 WAN, 1 LAN through a Cisco Router?

Premier Mellanox Selections: best-selling Mellanox Switches, Network Cards, and Cables

“Hi, I need a router, can connect 2 incoming Ethernet line (WAN), 1 output line (LAN), need 10/100/1000 ports. Would you recommend a router for me?” One customer from Chad asked.

Let’s share the solution for everyone.

1) 10/100/1000 ports Router:

1800 series router only have 10/100 Ethernet ports, can’t be chosen.

2800 series router, from CISCO2821 will have 2GE ports.

Description: 2821 w/ AC PWR, 2GE, 4HWICs, 3PVDM, 1NME-X, 2AIM, IPBASE, 128F/512D

So recommend CISCO2821 Router as the reasonable choice.

2) Connect 2 incoming Ethernet line (WAN), 1 output line (LAN).

Need 3 GE ports, CISCO2821 include 2 GE port, then need add 1 GE ports at least.


a. HWIC-1GE-SFP+ GLC-T (MJ-45 normal cable connection)

How to connect 2 WAN, 1 LAN through a Cisco router1


b. HWIC-1GE-SFP + GLC-SX-MM/ GLC-LH-SM (optical fiber connection).

CISCO2821+HWIC-1GE-SFP+GLC-SX-MM+Optical Fiber

More Related Cisco Network Tips

How to Create an Inter-only VLAN on a Router?

WAN & WAN Devices

LAN and Setup VLAN on a Cisco Switch

How to Setup VLAN Trunking Protocol (VTP) on Cisco Switches?

Share This Post

Post Comment