I noticed the verio filter policy, in relation to inbound:
- In the traditional Class A space (i.e., 0/1), we accept /22 and shorter.
If I want to announce a /24 in the 64.x.x.x space(traditional Class A space)
am I'm going to have a problem with other networks that have peer filters
similar to Verios?
Thanks,
Jean-Christophe Smith
-Original Message-
From: Phil Rosenthal [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 15, 2003 1:47 PM
To: John Palmer
Cc: [EMAIL PROTECTED]
Subject: Re: Pitfalls of annoucing /24s
http://info.us.bb.verio.net/routing.html#PeerFilter
That's how Verio does it, and I assume, that's how most people who
filter by length do it as well.
--Phil
On Oct 15, 2003, at 4:40 PM, John Palmer wrote:
>
> Good question.
>
> You know there are thousands of legacy /24's out there that were
> allocated by
> IANA as /24's How can you aggregate them up if all you have is the /24?
>
> To those who filter out /24's - how is this done - just by the netmask
> size?
>
> - Original Message -
> From: "Jean-Christophe Smith" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 15, 2003 15:34
> Subject: Pitfalls of annoucing /24s
>
>
>>
>>
>> In current practice would there be serious jeopardy of portions of the
>> internet not being able to reach this address space due to bgp
>> filters or
>> other restrictions? What is the smallest acceptable block of IPs that
>> can be
>> announced without adverse or unpredictable results? Verio would most
>> likely
>> be picking up these routes from us. I don't want to cause a religious
>> debate, but I am interested in what the industry consensus is.
>>
>> I'm just doing some research, any comments would be appreciated.
>>
>> Thanks,
>> Jean-Christophe Smith
>>
>>
>
>
--Phil Rosenthal
ISPrime, Inc.
