Re: iptables rules for cups printer discovery

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On Thu, 14 Aug 2008, Jan Engelhardt jengelh-at-medozas.de |netfilter| wrote:

On Thursday 2008-08-14 16:54, Stephen Isard wrote:

You could write a layer-4 connection tracker

Maybe you could, but I'm not sure that I could :-)  At what level
would this operate?  Kernel?

Kernel. Parallel to things like nf_conntrack_ftp.

Mm. I'm sure it would be educational to try, but I think I may just do my printer discovery by social engineering - ask the departmental computing officers for the ip numbers.
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