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Posted by J.Cottingim on August 15, 2007, 1:16 am
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On Aug 14, 4:50 am, benson...@yahoo.com.hk wrote:
> Hi, all,
>
> I have a network infrastructure which has the central office and three
> remote offices, they are linked together by site-to-site VPNs ( set up
> with Cisco PIX ).
>
> we are going to set up the WAN HA solution in central office which
> will use three internet lines from three different ISPs.
>
> Shall we purchase three Cisco Routers ( for ISP lines ) in Central
> office to build up a GLBP network :
> 1. each remote office will set up three site-to-site VPNs ( each for
> each ISP ) linking to central
> office to form the failover/load-sharing
> 2. in central office, a PIX failover system behind the routers; the
> PIx failover system is the same
> subnet with LAN
>
> I would like to know if the above infrastructure is practical ? does
> the above system achieve the bandwidth sharing and failover for WAN ?
>
> Thank you so much for your input
Benson,
I'm going to assume you are not only going to be using eBGP, but iBGP
as well.
I don't believe it would be a good idea to set up 3 separate VPN's per
site. - one would probably be sufficient.
If you set up more than one to each location, you'd have to set up
some pretty tricky routing to make it work.
I would suggest setting up two PIX's at the home office for HA. This
would allow for an easier configuration and routing.
Just a thought, why three ISP's - two is usually enough.
Good Luck
JC
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