North American Network Operators Group

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Re: Customer-facing ACLs

  • From: Scott Weeks
  • Date: Tue Mar 11 22:25:44 2008

--- [email protected] wrote:

uunet dialup has blocked port25 in both directions since 2002...
little to no complaints. (well, they may have received complaints
since I left, but... thank John StClair for the work behind that
filtering actually.)

I'd be curious as to how they implememted this.  Prop up ALCs and deal with the complaints as they came?  If, not how was the research done as to what was legitimate tcp25 and what wasn't.  For how many customers?  Residential, business or both?  DHCP only or static too?  etc...