Beyond TCP and UDP (Re: Nmap-2.00 doesn't recognize SSH?)

[Lars Marowsky-Brée <lmb () pointer teuto de>]

On 1998-12-17T14:02:16,
   Robert Ståhlbrand <robert.stahlbrand () ac salcom se> said:

> This a tough job. You gotta know how every protocol works in detail and figure
> out a smart way to make it respond. They are often "UDP-like" but doesn't answer
> with ICMP port unreachable.
> What could be of interest?
> ESP (50)
> AH (51)

89 (OSPF), PTP - I don't know how these react, but it might be interesting to
check for. Afterall, thats what a scanner is destined to find out - how
the network reacts to random probing ;-)

Sincerely,
    Lars Marowsky-Brée

--
Lars Marowsky-Brée
Network Management

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