This is a good cost effective solution. The single router is the single point of failure, of course. If the router dies, your connection dies.

Possibilities:

1. one router, two wics, two leased lines, two backbone providers, bgp-4. Good cheap redundancy, if your apps can take potentially hours of downtime.
2. 2 routers, two wics, two leased lines, two backbone providers, bgp-4. If one router goes down, swap the wics and lines to the other one. Slow, manual, fairly cost effective redundancy.
3. 2 routers, 2 wics, two leased lines, two backbone providers, bgp-4, vrrp. If one router goes down, the other takes over traffic automatically. Expensive, but worth it to anyone who needs uptime.
4. 2 routers, 4 wics, 4 lesed lines, 4 backbone providers, bgp-4, vrrp. If one router goes down, the other takes over traffic automatically. No loss of speed or bandwidth. Expensive.

--p

-----Original Message-----
From: firewall-wizards-bounces@listserv.icsalabs.com
[mailto:firewall-wizards-bounces@listserv.icsalabs.com]On Behalf Of
shadow floating
Sent: Sunday, April 13, 2008 4:18 PM
To: Firewall Wizards Security Mailing List
Subject: [fw-wiz] router with 2 redundant inferfaces


Hi guys,
my company is having 2 leased lines internet connections and they were
about to buy two routers to make them standby to each other, each with
one of the internet connections, as they were discussing with some
network consultant...he convinced them to reduce cost and put 2 wics
in one router only each connected to the each internet connection
instead of buying 2 routers....is that appropriate??

thanks alot

Nad
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