From: Scott Morris (smorris@ipexpert.com)
Date: Thu Sep 06 2007 - 21:55:17 ART
If you are not multihomed with separate providers, you are likely going to
get rejected by ARIN. They're getting pickier these days about assignments
and justifications and will require proof of multihoming within 30 days if
not present already. Otherwise, their preference is for you to use a
private ASN (64512-65535) and work out the details with your upstream.
Multihoming to the same AS (dual links to same ISP) doesn't count as
multihoming in their definitions.
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
_____
From: Gabriel Nunes [mailto:gabriel.nunes@gmail.com]
Sent: Thursday, September 06, 2007 8:23 PM
To: smorris@ipexpert.com
Cc: Joseph Brunner; Cisco certification
Subject: Re: Requesting an AS number
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 <http://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
<http://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 <http://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
<http://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!
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>
[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
This archive was generated by hypermail 2.1.4 : Sat Oct 06 2007 - 12:01:09 ART