nanog mailing list archives
Re: RFC1918 conformance
From: bgp4-adm () sprint net
Date: Mon, 10 Feb 1997 20:39:27 -0500 (EST)
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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Current thread:
- Re: RFC1918 conformance, (continued)
- Re: RFC1918 conformance Andrew Partan (Feb 11)
- Re: RFC1918 conformance Tony Bates (Feb 11)
- Re: RFC1918 conformance Alex P. Rudnev (Feb 11)
- Re: [NANOG] RFC1918 conformance Jeffrey C. Ollie (Feb 11)
- Re: [NANOG] RFC1918 conformance Alex P. Rudnev (Feb 12)
- Re: [NANOG] RFC1918 conformance Dana Hudes (Feb 12)
- Re: [NANOG] RFC1918 conformance Alex P. Rudnev (Feb 13)
- Re: RFC1918 conformance Jeffrey C. Ollie (Feb 13)
- Re: RFC1918 conformance Andrew Partan (Feb 11)
- Re: RFC1918 conformance Tony Bates (Feb 17)
- Re: RFC1918 conformance bgp4-adm (Feb 10)
- Re: RFC1918 conformance David Schwartz (Feb 10)