WAN Failover with 2821

jmichel1976 · ‎04-09-2012

Have a Cisco 2821 that currently has the 4esw-Hwic. There is currently a fiber/ethernet internet connection on it, want to add an additional Internet connection and have it failover, preferably to specific Lan networks, But I'm not sure it's possible with the current hardware. Won't the router always see the 4esw ports as up? Can this be done?

heres the current interface list

nterface IP-Address OK? Method Status Protocol

GigabitEthernet0/0 WAN IP YES NVRAM up up

GigabitEthernet0/1 LAN IP YES NVRAM up up

FastEthernet0/0/0 unassigned YES unset up down

FastEthernet0/0/1 unassigned YES unset up down

FastEthernet0/0/2 unassigned YES unset up down

FastEthernet0/0/3 unassigned YES unset up up

Vlan1 unassigned YES NVRAM up down

Vlan2 Assigned to fa0/0/2 YES NVRAM up up

paolo bevilacqua · ‎04-09-2012

Yes, it ispossible.

If you are not sure how to configure it, engage a reputable consultat or certified Cisco partner, to avoid a spending a lot of time learning things to be used once.

jmichel1976 · ‎04-09-2012

I'd like to learn how to do it, as to gain an understanding on how to do it, if I always paid someone to do something I couldn't I'd never learn how to do anything..lol, I'd be willing to pay someone to guide me through the configuration, if they want to send their contact info

Neeraj Arora · ‎04-10-2012

For a basic Failover scenario, check this document:

http://docwiki.cisco.com/wiki/NAT_failover_with_DUAL_ISP_on_a_router_Configuration_Example

For implementing PBR (so that specific vlans chose specific ISP while trying to access Internet) check the following documnet:

https://supportforums.cisco.com/docs/DOC-8313

Hope it helps you in getting started

Neeraj

jmichel1976 · ‎04-10-2012

that looks simple enough, my question now is for sure can i do it when one of the ISP's are plugged into the 4ESW-HWIC