] On Behalf Of
Phil Rosenthal
Sent: Wednesday, October 15, 2003 4:47 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
- Original Message -
From: Ejay Hire [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, October 17, 2003 5:54 PM
Subject: RE: Pitfalls of annoucing /24s
Am I the only one that has never had an issue multihoming with /24's?
Nope, Most of the networks I've run are basically
--Original Message-
-From: Phil Rosenthal [mailto:[EMAIL PROTECTED]
-As long as it's provider assigned, and your provider announces the
-supernet that the /24 is from, it will still work. If you
-announce PI
-space out of the old class A space in /24's, many networks
-wont be able
On 16 Oct 2003 at 9:44, McBurnett, Jim wrote:
[...]
We are annoucing a /24 from the 66 /8 block and I have only found 2
ISP's
(according the the netlantis project) that can't reach me.
We are multihomed. I suspect that may be due to aggregation.
But even with our backup online, I still saw
Hello;
On Wednesday, October 15, 2003, at 11:57 PM, Forrest wrote:
True enough, but are there any providers currently that filter /24's
from
the old Class C space that /24's were assigned directly from?
As someone who is multihomed but uses others /24's, I am sensitive to
this.
I do not
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
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
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
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
] On Behalf Of
Phil Rosenthal
Sent: Wednesday, October 15, 2003 4:47 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
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
On Wed, 15 Oct 2003, Jean-Christophe Smith wrote:
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
To: 'Phil Rosenthal'; 'John Palmer'
Cc: [EMAIL PROTECTED]
Subject:RE: Pitfalls of annoucing /24s
What about the /24's that many ISPs (especially tier 2-3) are assigning
to multi-homed customers? What about an IX or critical infrastructure
providers that may be issued a /24 from ARIN
I will say most probably yes. I have seen this problem(?) on many
small business customers. The hard part is trying to explain that to
them.
-William
On Wed, 2003-10-15 at 17:16, Jean-Christophe Smith wrote:
I noticed the verio filter policy, in relation to inbound:
- In the traditional
On Oct 15, 2003, at 5:24 PM, H. Michael Smith, Jr. wrote:
What about the /24's that many ISPs (especially tier 2-3) are assigning
to multi-homed customers? What about an IX or critical infrastructure
providers that may be issued a /24 from ARIN (Policy 2001-3)?
As long as it's provider
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
Phil == Phil Rosenthal [EMAIL PROTECTED] writes:
Phil http://info.us.bb.verio.net/routing.html#PeerFilter
Phil That's how Verio does it, and I assume, that's how most people
Phil who filter by length do it as well.
We currently see 28804 /24 prefixes from our transits and peers which
are
PROTECTED]; 'John Palmer'
Subject: Re: Pitfalls of annoucing /24s
On Oct 15, 2003, at 5:24 PM, H. Michael Smith, Jr. wrote:
What about the /24's that many ISPs (especially tier 2-3) are
assigning
to multi-homed customers? What about an IX or critical
infrastructure
providers that may be issued
-homed customer and not accepting /24 routes.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
William Caban
Sent: Wednesday, October 15, 2003 5:44 PM
To: Jean-Christophe Smith
Cc: NANOG
Subject: RE: Pitfalls of annoucing /24s
I will say most probably yes
I have a /24 allocated to my by XO Communications in Phoenix, AZ
(67.X.X.0/24). I am currently announcing it to Verio in Europe. A
friend of mine that is an XO customer in Phoenix with BGP to XO can get
to that address block within XO's network.
But on the flip side. I also have a /22 from
: Wednesday, October 15, 2003 6:28 PM
Subject: Re: Pitfalls of annoucing /24s
I have a /24 allocated to my by XO Communications in Phoenix, AZ
(67.X.X.0/24). I am currently announcing it to Verio in Europe. A
friend of mine that is an XO customer in Phoenix with BGP to XO can get
True enough, but are there any providers currently that filter /24's from
the old Class C space that /24's were assigned directly from?
I realize that if proposal 2002-3 does get passed but everyone filters
those prefixes then it will be a completely worthless proposal, and even
worse than
, 2003 11:35 PM
To: Forrest; [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Pitfalls of annoucing /24s
Forrest,
Even if ARIN passes this policy that will not make any provider change
their filtering policy. It is true that many providers do use the ARIN
allocation sizes to create
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