[79857] in North American Network Operators' Group

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Re: BCP for ISP to block worms at PEs and NAS

daemon@ATHENA.MIT.EDU (Randy Bush)
Sun Apr 17 12:04:18 2005

From: Randy Bush <randy@psg.com>
Date: Sun, 17 Apr 2005 06:01:55 -1000
To: Kim Onnel <karim.adel@gmail.com>
Cc: nanog@merit.edu
Errors-To: owner-nanog@merit.edu


> 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


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