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Re: Failover internet connections, and implementation...
From: Larry Offley <lucullus () shaw ca>
Date: Tue, 23 Oct 2007 20:19:37 -0700

You should also be able to setup the second connection and use both at the same time. Then If either of them is having a problem the traffic will use the other one. Look into a device capable of load balancing two connections. Then you are not "wasting" any equipment as it is actually being used to increase your bandwidth.

Larry Offley
www.offley.ca

Dan Denton wrote:
I've a question about failover internet connections. I'm interesting in
knowing what kind of implementations that other SMB's use for redundancy,
and to switch to in the case of a DOS attack.
Do any of you have redundant highspeed internet connections for your offices
(versus those for datacenters)? If so, what kind of setup do you have?

Here's the setups I'm considering...

1. Have a second cable modem/dsl modem active, but not hooked into the
network. In the event of a failure, move the connection for perimeter
devices over to the standby connection and reconfigure the perimeter device
to use a different IP.

2. Have a second set of perimeter devices (firewalls) programmed to use the
IP's on the second connection, as a hot standby.

My problem with the first option is the time it would take to reconfigure
firewalls and IDS' to use the other ISP's connection. The problem I have
with the second is the expense of firewalls and IDS' just sitting there
idle.
Any input is greatly appreciated!


Dan





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