Actually, there are very good articles written by Cisco's Halibi,
if i am not mistaken. if you search Cisco / 3com site i think
you can get the implementation details of BGP4, getting your sites  ASN
number from ARIN, setting up the 2 routers in HA via HSRP and heartbeat link,
and connecting your FW to the 2 links. any ISP should also give you
details of BGP4 since they will have to support your routers.

http://info.connect.com.au/docs/routing/general/multi-faq.shtml#q1
 BGP?
   What is multi-homing anyway?
   I don't fit either multi-homing category, can I still use BGP?
   What if I'm planning to multi-home but not doing it yet?
   Why should a multi-homed organisation use BGP?
   Why do I have to use BGP? I already use RIP internally.
   Does using BGP make it easier to change provider?
   Do I have to use BGP with all the people I connect to?
   What hardware do I need for BGP?
   How do I configure BGP so that bad things don't happen?
   How do I default to another provider but route Connect traffic to Connect?
   How do I prefer routes via an IX but default to Connect?
   Why do I have to tell Connect manually which networks I will be announcing?
   How does Connect use BGP communities?
   How do I restrict announcements so they don't go to Connect's providers?
   What is an Autonomous System Number and where can I get one?
   Does Connect charge for BGP use?
   Connect's Looking Glass
   Where can I find more information?



   What is BGP?

       Border Gateway Protocol (BGP) is the routing protocol used to exchange
routing information across the Internet.
       BGP is an exterior routing protocol and as such is concerned with routing
between networks rather than within
       them (this is the domain of the interior routing protocols such as RIP,
OSPF, IS-IS). BGP/4 is defined in RFC
       1771. Also see RFC's 1772, 1773, and 1774.


ate: Tue, 13 Jun 2000 12:25:08 EDT
From: "Really Boring" <[EMAIL PROTECTED]>
Subject: RE: [FW1] redundant internet service providers

Websites: Do an Internet search for "BGP" or "BGP4".

Books: The only brief book (137 pages) I have found on this subject is 
"BGP4: Inter-Domain Routing in the Internet" by John W. Stewart III
(ISBN: 
0-201-37951-1).

Consider yourself lucky if you only need 100% uptime during business
hours 
:o)



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