Re: [c-nsp] BGP - hiding AS
Hello All Well, my Provider does not support remove-private-as or as-override. So how can we do this now? Any ideas? Gary On Wed, Mar 26, 2008 at 6:35 PM, Gary Roberton [EMAIL PROTECTED] wrote: I have the following topology Router 1(AS65501) - Router 2 (AS123) - Router 3 (AS456) - Router4 (AS65504) Router 1 is my site (private AS) R2 is network provider (public AS - I cant change config) R3 is my other site (public AS) R4 is end customer (private AS) Router 1 advertises network 10.1.1.1 to R2, then R2 to R3, R3 to R4. Problem is that I need to suppres / hide / remove the private AS of R1 by the time it gets to R4. This is because R4 can see the same private AS in use elsewhere on its own network. I would use the *neighbor x.x.x.x remove-private-as ***command but understand that this doesn't work if you have public and private AS numbers in the path. What is best practice? Thanks in advance Gary ** ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] BGP - hiding AS
On R3 create an aggregate for the networks so they are advertised with only the local as to R4. You can create two /25's for one /24 if you can't do a larger aggregate. David -- http://dcp.dcptech.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gary Roberton Sent: Thursday, April 03, 2008 11:46 AM To: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] BGP - hiding AS Hello All Well, my Provider does not support remove-private-as or as-override. So how can we do this now? Any ideas? Gary On Wed, Mar 26, 2008 at 6:35 PM, Gary Roberton [EMAIL PROTECTED] wrote: I have the following topology Router 1(AS65501) - Router 2 (AS123) - Router 3 (AS456) - Router4 (AS65504) Router 1 is my site (private AS) R2 is network provider (public AS - I cant change config) R3 is my other site (public AS) R4 is end customer (private AS) Router 1 advertises network 10.1.1.1 to R2, then R2 to R3, R3 to R4. Problem is that I need to suppres / hide / remove the private AS of R1 by the time it gets to R4. This is because R4 can see the same private AS in use elsewhere on its own network. I would use the *neighbor x.x.x.x remove-private-as ***command but understand that this doesn't work if you have public and private AS numbers in the path. What is best practice? Thanks in advance Gary ** ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] BGP - hiding AS
On 03/04/2008, Gary Roberton [EMAIL PROTECTED] wrote: Hello All Well, my Provider does not support remove-private-as or as-override. So how can we do this now? Any ideas? gre is your friend - do the r2 need to know about your networks? can you do the remove-private-as on r3 -- -mat ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] BGP - hiding AS
I like that idea. I'm going to do that for a similar type thing. -Original Message- From: [EMAIL PROTECTED] [mailto:cisco-nsp- [EMAIL PROTECTED] On Behalf Of Mateusz Blaszczyk Sent: Thursday, April 03, 2008 2:54 PM To: Gary Roberton Cc: cisco-nsp@puck.nether.net Subject: Re: [c-nsp] BGP - hiding AS On 03/04/2008, Gary Roberton [EMAIL PROTECTED] wrote: Hello All Well, my Provider does not support remove-private-as or as-override. So how can we do this now? Any ideas? gre is your friend - do the r2 need to know about your networks? can you do the remove-private-as on r3 -- -mat ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] BGP - hiding AS
I have the following topology Router 1(AS65501) - Router 2 (AS123) - Router 3 (AS456) - Router4 (AS65504) Router 1 is my site (private AS) R2 is network provider (public AS - I cant change config) R3 is my other site (public AS) R4 is end customer (private AS) Router 1 advertises network 10.1.1.1 to R2, then R2 to R3, R3 to R4. Problem is that I need to suppres / hide / remove the private AS of R1 by the time it gets to R4. This is because R4 can see the same private AS in use elsewhere on its own network. I would use the *neighbor x.x.x.x remove-private-as ***command but understand that this doesn't work if you have public and private AS numbers in the path. What is best practice? Thanks in advance Gary ** ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] BGP - hiding AS
Router 1(AS65501) - Router 2 (AS123) - Router 3 (AS456) - Router4 (AS65504) I would use the *neighbor x.x.x.x remove-private-as ***command but understand that this doesn't work if you have public and private AS numbers in the path. I think it would work ok, but this command shoudl be used on R2 advertising routes to R3, shouldn't it? you might consider using multihop bgp R1-R4? Best Regards, -- -mat ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
