[nsp] inbound failover without BGP?

[Sergio Ramos]

Hi!

There are specific devices for your requirements. I haven´t had the chance
to test them but probably someone on this list can share with us their
experiences. 

LinkProof: http://www.radware.com/content/products/link.asp

"LinkProof provides intelligent inbound and outbound load balancing while
eliminating the complexities of traditional routing protocols like BGP.
Smart NAT mechanism provides simplified management of IP address ranges
assigned to the network by various ISPs."

Warp: http://www.fatpipeinc.com/warp/

"WARP dynamically load balances over multiple ISPs without the need for BGP
programming."

Powerlink: http://www.astrocorp.com/

You may also find this document of interest:

Enabling Enterprise Multihoming with Cisco IOS NAT:
http://www.cisco.com/warp/public/cc/pd/iosw/ioft/ionetn/tech/emios_wp.htm

There was a previous thread in the list about this issue:

http://puck.nether.net/pipermail/cisco-nsp/2002-September/000616.html

regards,

Sergio.

-----Original Message-----
From: Furnish, Trever G [mailto:TGFurnish@herff-jones.com]
Sent: 17 December 2002 16:03
To: Cisco NSP List (E-mail)
Subject: [nsp] inbound failover without BGP?


Hopefully I'm showing some ignorance here... :-)

Is there any way to provide failover routing of INBOUND traffic using links
from multiple providers, OTHER THAN running BGP with those providers?

In the past I've always obtained a class-c and an AS number and announced my
addresses out to all of my providers via BGP, but if you're tallking about a
small network with just a few addresses in use that's really wasteful - most
providers won't listen to your bgp announcements for anything smaller than a
/24.

But wasteful or not, having inbound failover is a requirement for most
commercial web sites that provide service to paying customers.  If the link
from Provider1 fails, the inbound connections still succeed because
Provider2 is still announcing to the world that he has a path to me.  Is
there some other way to do it?

-t.

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