nanog mailing list archives

Re: route ingress


From: Randy Bush <randy () psg com>
Date: Tue, 30 Dec 97 12:11 PST

however, when you set up BGP peerage with somebody, you're at the mercy of
whatever level of selectivity they use in their injections.  that is, most
folks do not use RPSL or the PRDB or whatever to control what they'll listen
to from a BGP peer.  the assumption of trust and competence still runs high
among people who speak BGP to each other.

only among those who have not been burned.

so the question that's got me perturbed at the moment is, if a spammer
wanted to spam from unallocated address space using five minute windows,
would YOUR routing core allow it?  subquestion 1: if the spammer is your
customer.  subquestion 2: if the spammer is a customer of one of your BGP
peers.  subquestion 3: if the spamemr is a customer of a distant
BGP-connected AS.

no to all, of course.

filters are your friend.  filters are your friends' friend.

randy


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