From: Mohamed, Liban [NTK] (Liban.Mohamed@sprint.com)
Date: Fri Sep 07 2007 - 00:05:38 ART
Joe,
You really don't need your own AS, to announce Verizon block to other SP, as long as the route is not required to go outside the other SP. The reason ARIN doesn't give AS like popcorn is we are running out AS, the last time I checked we used 39k, This is one the reason of the 4 byte AS: (draft-ietf-idr-as4bytes-13.txt)One has to ask why you want to run BGP?
1- You have to be multihomed
2- You must have /24 and below ( No SP will accept a prefix that is greater than /24)
So if you are single homed, I don't see the reason of having your own AS#. Most SP have a private AS for a single homed customer.
Thanks,
Liban Mohamed
NTAC-IP
Sprint/Nextel
www.sprint.net
liban.mohamed@sprint.com
(W) 678-291-3438
(PCS) 404-441-9701
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Joseph Brunner
Sent: Thursday, September 06, 2007 10:30 PM
To: smorris@ipexpert.com; 'Gabriel Nunes'; 'Cisco certification'
Subject: RE: Requesting an AS number
Scott, that was in 2001, and I just giving him an example... bottom line you
and I both know you need your own AS to use MCI ip space on Qwest and vice
versa... Arin should stop wasting time and just dole out the AS #.
Just tell ARIN, I WANT TO ANNOUNCE (AND HAVE PERMISSION TO ANNOUNCE) CIDR
space allocated to me by a another AS. Doesn't this do it anymore?
They used to give them out in droves to my customers at Globix?
What's up with arin these days?
-----Original Message-----
From: Scott Morris [mailto:smorris@ipexpert.com]
Sent: Thursday, September 06, 2007 8:14 PM
To: 'Joseph Brunner'; 'Gabriel Nunes'; 'Cisco certification'
Subject: RE: Requesting an AS number
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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