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Re: RFC1918 conformance

  • From: bgp4-adm
  • Date: Mon Feb 10 21:02:06 1997

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
> > 
> > 
> > 
> > 
> > 
> 

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