RE: Pitfalls of annoucing /24s

2003-10-17 Thread Ejay Hire
] 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

Re: Pitfalls of annoucing /24s

2003-10-17 Thread Brian Bruns
- 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

RE: Pitfalls of annoucing /24s

2003-10-16 Thread McBurnett, Jim
--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

RE: Pitfalls of annoucing /24s

2003-10-16 Thread Peter E. Fry
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

Re: Pitfalls of annoucing /24s

2003-10-16 Thread Marshall Eubanks
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

Pitfalls of annoucing /24s

2003-10-15 Thread Jean-Christophe Smith
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread John Palmer
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread Phil Rosenthal
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread Jean-Christophe Smith
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread H. Michael Smith, Jr.
] 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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread william
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread Sean Donelan
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread Forrest
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread William Caban
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread Phil Rosenthal
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread Matt Levine
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread Andrew - Supernews
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread H. Michael Smith, Jr.
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread H. Michael Smith, Jr.
-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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread Andy Ellifson
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

Re: Pitfalls of annoucing /24s

2003-10-15 Thread K. Scott Bethke
: 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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread Forrest
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

RE: Pitfalls of annoucing /24s

2003-10-15 Thread H. Michael Smith, Jr.
, 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