Hi all

I encountered an interesting scenario (salesman to customer: sure we can do
that, I don't see why the sun can't revolve around the Earth, our solution
is so great we can make it revolve clockwise or counterclockwise...)

I opened a TAC (actually 2 cases) case for this and I will share thier 2nd
solution later. The first one I was able to ask enough questions about until
we realized it wouldn't work.

There are 3 sites involved. Site A is the main site and connects to Site B
with 384k FT1 and to Site C via ISDN.

Sites B and C have essentially the same set-up. There is a 1750 DSL router
to the Internet. Behind that there is a PIX 506, and behind the PIX there is
a 2600 going via ISDN/384k to site A. SiteB connects to A via ISDN, and C
goes to A via 384k.

The main goal is to provide redundancy in case either the 384k or the ISDN
links were to fail through the Internet via VPN. The secondary goal is to
maintain Internet connectivity for all sites in the event that 1 of the DSL
lines go down.

There is no inbound traffic from the Internet (no email, web, etc), just
responses to connections initiated inside the network. Both DSL are going to
the same ISP. All routers are running EIGRP. This is a bank, so security is
an issue.

What would your solution be? I'll point out pitfalls that we encountered in
trying to figure this out. We were able to come up with a partial solution,
that didn't compromise security.

Scott Meyer
CCNA, CCDA, MCSE, etc
[EMAIL PROTECTED]




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