Update Spamhaus DROP list from Cisco CLI (TCL)

[Thomas Magill <tmagill () providecommerce com>]

Previous conversations made me decide this would be fun to do so I ignored all my real work today and made it happen.

I built a TCL script that can be mapped to an alias ("alias exec updatedrop tclsh updatedrop.tcl") that will connect to 
the Spamhaus DROP list and route all of the prefixes to null0.  It should alsbo be able to be mapped to a kron job, but 
I haven't tested that and I've heard there are issues with kron+tcl unless you tie it to an EEM event.  It adds a name 
indicator (Spamhaus_SBLXXXXX) to all of the routes to show that they come from the DROP list.  You can find the script 
at:

http://tmagill.net/cisco_networking_ccie_studies/?p=83

There is also a script to remove all of the Spamhaus_SBLXXXXX null routes.

If I were to redis these into BGP they could be propagated just like the CYMRU Bogons...  I plan on doing that within 
the next week and start testing.  Does anyone see that as a useful service to be offered?


Thomas Magill
Network Engineer
Office: (858) 909-3777
Cell: (858) 869-9685
tmagill () providecommerce com<mailto:tmagill () providecommerce com>

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San Diego, CA  92121

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