[7463] in North American Network Operators' Group
Re: RFC1918 conformance
daemon@ATHENA.MIT.EDU (bgp4-adm@sprint.net)
Mon Feb 10 21:07:23 1997
From: bgp4-adm@sprint.net
Date: Mon, 10 Feb 1997 20:47:56 -0500 (EST)
To: Pierre Thibaudeau <prt@Teleglobe.CA>
cc: Milutin Alexander <amilutin@infocom.kiev.ua>, hostmaster@ripe.net,
nanog@merit.edu, rr-admin@Teleglobe.net
In-Reply-To: <Pine.GSO.3.95.970210203000.2597C-100000@mercury.int.sprintlink.net>
Sorry, I forgot to include in the last email:
> access-list 50 permit any
And I did a "clear ip bgp 144.228.120.130" without the "soft out".
Thanks.
Ray,
Sprintlink
On Mon, 10 Feb 1997 bgp4-adm@sprint.net wrote:
> Hi, Pierre.
>
> These are the changes I have made in our sl-dc-10 router:
>
> >router bgp 1790
> > neighbor 144.228.120.130 remote-as 6846
> > neighbor 144.228.120.130 version 4
> > neighbor 144.228.120.130 distribute-list 50 in
> > neighbor 144.228.120.130 distribute-list 111 out
> > neighbor 144.228.120.130 route-map transit-in in
> > neighbor 144.228.120.130 route-map transit-out out
> > neighbor 144.228.120.130 filter-list 53 in
> >
> > access-list 50 deny 10.0.0.0 0.255.255.255
> > access-list 50 deny 172.16.0.0 0.15.255.255
> > access-list 50 deny 192.168.0.0 0.0.255.255
> >
> > clear ip bgp 144.228.120.130 soft out
>
> Please let us know if there are any problems with this new configuration.
> Thank you.
>
> Ray,
> Sprintlink
>
>
> On Mon, 10 Feb 1997, Pierre Thibaudeau wrote:
>
> > As specified in RFC1918 (ftp://ds.internic.net/rfc/rfc1918.txt) the
> > netblocks 10.0.0.0/16, 172.16.0.0/12 and 192.168.0.0/16 have been
> > allocated for "Private Internets". Consequently, these netblocks
> > should not be routed over the Internet.
> >
> > As shown below, they are currently advertised from AS6848 and these
> > advertisements are carried to us (AS6453) through various AS's of the
> > SprintLink system.
> >
> > >sh ip bgp reg _6846$
> > BGP table version is 9335417, local router ID is 207.45.201.5
> > Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > internal
> > Origin codes: i - IGP, e - EGP, ? - incomplete
> >
> > Network Next Hop Metric LocPrf Weight Path
> > *> 10.0.0.0 144.228.164.57 0 90 0 1794 1239 1790 6846 ?
> > *> 172.16.0.0/12 144.228.164.57 0 90 0 1794 1239 1790 6846 ?
> > *> 192.168.0.0/16 144.228.164.57 0 90 0 1794 1239 1790 6846 ?
> > [...]
> >
> > AS6846 responsibles should take immediate action to remove these
> > announcements. SprintLink, as any conscientious operator, should take
> > action to filter out these announcements from any of its peers.
> >
> > Regards.
> > __
> >
> > Pierre Thibaudeau | e-mail: <prt@Teleglobe.CA>
> > TELEGLOBE CANADA |
> > 1000, rue de La Gauchetiere ouest | Tel: +1-514-868-7257
> > Montreal, QC H3B 4X5 |
> > Canada | fax: +1-514-868-8446
> >
> >
> >
> >
> >
>
