From: Gabriel Nunes (gabriel.nunes@gmail.com)
Date: Thu Sep 06 2007 - 21:23:14 ART
Hi,
My question is just about the second option, when you are not multihomed...
But feel free to discuss this as welll...
Gabriel Nunes CCIE#17737
On 9/6/07, Scott Morris <smorris@ipexpert.com> wrote:
>
> I'm not sure that's going to justify it as those Ips are not owned by you.
> Do you have permission to multihome advertising those more specific
> prefixes
> from both sides?
>
> I'm not sure where you're seeing the /9 from because out of the 63.x.x.x
> block, Verizon (old UUNet) owns 63.0.0.0/9 but advertises it as eight /12s
> plus a bunch more specific (assuming other assigned customers multihome).
>
> smorris@Emanon-Edge-J4300> show route 63.0.0.0/8 terse | match /9
>
> smorris@Emanon-Edge-J4300> show route 63.0.0.0/8 terse | match /12
> * 63.0.0.0/12 B 170 100 12.118.111.101 7018 701
> I
> * 63.16.0.0/12 B 170 100 >12.118.111.101 7018 701
> I
> * 63.32.0.0/12 B 170 100 12.118.111.101 7018 701
> I
> * 63.48.0.0/12 B 170 100 >12.118.111.101 7018 701
> I
> * 63.64.0.0/12 B 170 100 12.118.111.101 7018 701
> I
> * 63.80.0.0/12 B 170 100 >12.118.111.101 7018 701
> I
> * 63.96.0.0/12 B 170 100 12.118.111.101 7018 701
> I
> * 63.112.0.0/12 B 170 100 >12.118.111.101 7018 701
> I
> * 63.144.0.0/12 B 170 100 >12.118.111.101 7018 209
> I
> * 63.160.0.0/12 B 170 100 12.118.111.101 7018
> 1239
> I
> * 63.192.0.0/12 B 170 100 12.118.111.101 7018
> 7132
> I
> * 63.224.0.0/12 B 170 100 12.118.111.101 7018 209
> I
>
> smorris@Emanon-Edge-J4300> show route 65.0.0.0/8 terse | match /12
> * 65.0.0.0/12 B 170 100 >12.118.111.101 7018
> 6389
> I
> * 65.112.0.0/12 B 170 100 12.118.111.101 7018 209
> I
> * 65.224.0.0/12 B 170 100 >12.118.111.101 7018 701
> I
>
> Qwest on the other hand advertises 65.112.0.0/12 and 362 more specific
> routes.
>
> smorris@Emanon-Edge-J4300> show route 65.112.0.0/12 terse | count
> Count: 363 lines
>
> smorris@Emanon-Edge-J4300>
>
> Get permission first from your upstreams (Verizon 'n' Qwest) then fill out
> your forms with ARIN in order to request an ASN.
>
> HTH,
>
>
> Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
> #153, CISSP, et al.
> CCSI/JNCI-M/JNCI-J
> VP - Technical Training - IPexpert, Inc.
> IPexpert Sr. Technical Instructor
>
> A Cisco Learning Partner - We Accept Learning Credits!
>
> smorris@ipexpert.com
>
> Telephone: +1.810.326.1444
> Fax: +1.810.454.0130
> http://www.ipexpert.com
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Joseph Brunner
> Sent: Thursday, September 06, 2007 4:17 PM
> To: 'Gabriel Nunes'; 'Cisco certification'
> Subject: RE: Requesting an AS number
>
> Here is what I used 6 years ago to justify my AS #
>
> Our network is multi-homed to two AS's that will not advertise our network
> prefix with the network length associated with our external addressing.
> Only
> our AS will advertise this prefix to the global internet. Our network
> policy
> involves advertising 63.X.X.X/24 and 65.X.X.X/24 from behind AS 701 & AS
> 209. These networks only advertise 63.X.X.X/9 and 65.X.X.X/12.
>
> The longer /24 prefix is required to influence inbound traffic flow and
> redundancy.
>
> -Joe
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Gabriel Nunes
> Sent: Thursday, September 06, 2007 3:54 PM
> To: Cisco certification
> Subject: Requesting an AS number
>
> Hi all,
>
> Does someone know to explain exactly what routing policy requirements is
> the
> last option bellow:
>
>
> When completing the template, your organization must first establish
> justification for the request. Justification can be made by meeting at
> least
> one of the following two requirements.
>
> Multi-homed:
>
> If your organization is multi-homed, or intends to be multi-homed within
> the
> next thirty (30) days, you must show exactly how your organization is
> connected to the Internet by providing the following information:
>
> 1. Exterior gateway protocol to be used
> 2. The IP network addresses presently in use on the network
> 3. The AS number and name of each upstream provider and/or peer
>
> Unique Routing Policy:
>
> *Your organization must demonstrate how the routing policy of the AS will
> differ from the routing policies of its border peers*
>
> Thanks,
>
> Gabriel Nunes CCIE#17737
>
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