On 1/6/13 10:51 PM, Bjørn Tore wrote:
Why would you accept any /32s in the first place?
From myself? I accept all sorts of prefix lengths internally that I would never accept from the internet.

I accept quite a few pretty long prefixes from my arbor TMS for example, more in the context of RTBH e.g. RFC 5635 and so on.

Bjørn Tore @ mobil

Den 7. jan. 2013 kl. 06:22 skrev Joel jaeggli <[email protected]>:

On 1/6/13 20:14 , Richard Gross wrote:
Dear List,

I am seeking advise.  If you wanted to block 800K /32's from your inbound
pipes, how would you do it?

Would you null route?   Put up multiple stanza firewall filters?   Which
way has the least amount of hit on router resources?
so I'd have a discard route, and I'd inject the prefixes from another
box probably quagga with a nexthop of the discard route. I'd expect an
re2000 to injest those routes in about 2 minutes

I probably wouldn't use flowspec for this at this point.

If you would prefer to reply off-list, that would be super.

richg
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