nanog mailing list archives
Re: UUNet Routing SNAFU
From: "Alec H. Peterson" <ahp () hilander com>
Date: Wed, 8 Oct 1997 23:17:09 -0400
On Wed, Oct 08, 1997 at 07:39:52PM -0700, David Carmean wrote:
I installed the ACL Sean posted back in December of '95, updated by changes he posted in June of '96. Is that list still reasonable?
I'm pretty sure that is the version that filters >=207 at /19 (instead of /18 which is where he initially put the filter). However, keep in mind that the registries have been allocating space out of old class A space, which all versions of his filter I've seen _will_ block. So, depending on your policy you would want to add: access-list xxx permit ip 62.0.0.0 0.255.255.255 0.0.0.0 255.255.255.0 Do that for 24/8, 62/8 and any other blocks that the IANA has released to a registry (I think Dorian mentioned 63/8 and 64/8 as well). Of course, if you want to filter on /19 then your mask will be a little different. Of course, one can just do what Randy suggested and filter all class A space at /19 and be done with it. Alec -- +------------------------------------+--------------------------------------+ |Alec Peterson - ahp () hilander com | Erols Internet Services, INC. | |Network Engineer | Springfield, VA. | +------------------------------------+--------------------------------------+
Current thread:
- Re: UUNet Routing SNAFU, (continued)
- Re: UUNet Routing SNAFU blast (Oct 08)
- Re: UUNet Routing SNAFU blast (Oct 08)
- Re: UUNet Routing SNAFU Phil Howard (Oct 08)
- Re: UUNet Routing SNAFU Alec H. Peterson (Oct 08)
- Re: UUNet Routing SNAFU Miquel van Smoorenburg (Oct 09)
- Re: UUNet Routing SNAFU Mike Norris (Oct 09)
- Re: UUNet Routing SNAFU Michael Dillon (Oct 08)
- Re: UUNet Routing SNAFU Alec H. Peterson (Oct 08)
- Re: UUNet Routing SNAFU Sean M. Doran (Oct 08)
- Re: UUNet Routing SNAFU David Carmean (Oct 08)
- Re: UUNet Routing SNAFU Alec H. Peterson (Oct 08)
- Re: UUNet Routing SNAFU David R. Conrad (Oct 08)
- Re: UUNet Routing SNAFU Kevin Oberman (Oct 08)
- Re: UUNet Routing SNAFU Selina F. Priestley (Oct 08)
- Re: UUNet Routing SNAFU C. Harald Koch (Oct 08)
- Re: UUNet Routing SNAFU John A. Tamplin (Oct 08)
- Re: UUNet Routing SNAFU Cengiz Alaettinoglu (Oct 09)