Routing bet diff ISP

5 pts.
Tags:
Cisco 1700
Routing
Switches
WAN
Dear Sir, I have one cisco 1700 series router with 2T WAN interface card,currently we using only one WAN interface point to point link,speed 1 mbps. I have one 2 mbps RF link witch is directly terminate on LAN switch and router's fastethernet is also connecting the same switch, both link use for data. If one link goes down we have to change ip addresses of the pcs manually. My question is that can I connect this RF link to second WAN port of cisco 1700 router and do the routing? So if one link goes down no need to change ip address of pc. Point to point leased line link and RF link each are of different service providers

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Yes, this is possible. You will have to coordinate with the services provider to get more information on how the second WAN link is setup and how they want to connect to the 1700: PPPoE, Static IP, etc. This will also help with load balancing your WAN by combining both sources to one device.

I think a better implementation is to make the LAN switch the gateway for the PCs then set a default route in the LAN switch to point all external traffic to the router. This can be disussed furthur if needed.

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