North American Network Operators Group
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Re: BCP for ISP to block worms at PEs and NAS

  • From: Randy Bush
  • Date: Sun Apr 17 12:04:59 2005 
> On my Cisco-based SP network with RPMs in MGX chassis acting as PEs:
> I have the ACL below applied on many network devices to block the
> common worms ports,

if you are a service provider, perhaps filtering in the core will
not be appreciated by some customers.  of course, as a provider,
you can choose what 'service' you are providing.  but, if you
filter ports, it is not clear you are providing internet service.

randy