ā11-08-2011 02:04 AM - edited ā03-04-2019 02:11 PM
Hi folks,
I want to configure BGP but i am finding it very difficult to know BGP as I am new to this concept.
so, anyone can help me on thereotical and practical approach to configure bgp??
I have to configure my office router 2811 for two ISPs which will be acting as failover.
I have to start it from scratch, help me on this..!!!!!
and let me know if u want to anythng from my side...
Solved! Go to Solution.
ā11-08-2011 02:12 AM
unfortunatly nobody can help you except yourself - first of all you need to invest a couple of days and read at least on cisco.com a couple of articales about BGP, after that you will able at least ask correct questions.
We can help you to configure BGP for a special usage but nobody will do the configuration for you.
ā11-08-2011 02:12 AM
unfortunatly nobody can help you except yourself - first of all you need to invest a couple of days and read at least on cisco.com a couple of articales about BGP, after that you will able at least ask correct questions.
We can help you to configure BGP for a special usage but nobody will do the configuration for you.
ā11-08-2011 04:20 AM
Hi Vishal,
As Konstantin suggested you need to do a bit of homework. but I can understand sometimes we are put in the spot and there is no time to waste. so I will try to give you some help here.
This link should help you in your set up. Let us know if you have further questions
http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a008009456d.shtml
http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00800945bf.shtml
HTH
Kishore
ā11-08-2011 07:13 PM
hi kishor,
thanks for the link.
I want to setuop BGP with two ISP redundancy.
Whille reading document of BGP i came to know there are certain requirements to setup BGP
first is we have to have /24 pool from atleast one ISP and
AS number(is it private or public?)
I want to know what is it and why do we require this?
ā11-08-2011 10:29 PM
Hi Vishal,
You assumption is correct.
If you are connected to two ISP requirement is
> Portable IP assignment from local registry: apnic for example. Because even if your ISP has asigned /24 ip your second ISP will not announce it because AS Blacklisting issue.
> Public AS asignment from registry..i.e apnic. By default they provide 4 byte AS number so you can ask for 2 byte AS number if that is your requirement.
Regards
Mahesh
ā11-09-2011 01:38 AM
Hi,
as Mahesh has said, you need a public AS and a "PI" (Provider independet) subnet.
There is also a possibility to get from both ISP their PA subnets and with help of NAT get a failover configuration,
see this link:
http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a0080091c8a.shtml
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