North American Network Operators Group
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Re: BLS FastAccess internal tech needed

  • From: Fergie
  • Date: Thu Jan 12 23:41:27 2006 
This is why AAA is so important. :-)

- ferg


-- "Steven M. Bellovin" <[email protected]> wrote:

In message <[email protected]>, "Fergie" writes
:
>
>RFC2827/BCP38?
>

The problem is that an ISP can do all the source filtering it wants, 
but if it only blocks SYNs to port 25 all it takes is one unfiltered 
dial-up to spoof that ISP's addresses.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb


--
"Fergie", a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 [email protected] or [email protected]
 ferg's tech blog: http://fergdawg.blogspot.com/