[c-nsp] Load balancing across 2 ADSL lines

[James O'Farrell]

David,

Thanks for that GLBP appears to be exactly what I am looking for. If the
current gateway terminates VPN I assume GLBP will just balance between
the 2 gateways irrelevant of the final destination and it is up to the
gateway to deal with the VPN traffic.

Regards
James O'Farrell

-----Original Message-----
From: David Coulson [mailto:david at davidcoulson.net] 
Sent: 13 October 2005 15:01
To: James O'Farrell
Cc: Kristofer Sigurdsson; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Load balancing across 2 ADSL lines

James O'Farrell wrote:

> In regards to HSRP I have seen this;
>
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_configuration_e
xample09186a0080094e90.shtml 
> which used 2 x instances of HSRP to load balance.

That seems like an ugly hack. GLBP does a better task, assuming you have
many hosts behind the routers.

> Unfortunately I am getting 2 ADSL lines from 2 Different ISP's so
multilink and any routing trickery is out.

I handle this myself (Using DSL + Cable), by running outbound GRE
tunnels over IPSec, which I can then route traffic using either load
balancing, or OSPF.

David




ValueLink is a specialist service provider of financial data to the major UK and International centres. Our clients require reliable, accurate data with maximum coverage on a fixed time delayed basis. We work closely with each of our clients to provide a service which meets their specific requirements and maximises efficiency of their process. 

For further information visit our website @ www.valuelink.co.uk

CONFIDENTIALITY: The information in this e-mail and any attachment is confidential. It is intended only for the named recipient(s). If you are not a named recipient, please notify the sender immediately and do not read, use, copy or disseminate this information.

ValueLink Information Services Ltd accepts no liability whatsoever for any direct or consequential loss arising from the use, or reliance on, this e-mail or it's contents.