From: James Ventre (messageboard@ventrefamily.com)
Date: Thu Feb 03 2005 - 22:26:42 GMT-3
Sounds like an ICMP Mask Request
http://www.networksorcery.com/enp/protocol/icmp/msg17.htm
RFC 950, page 11:
A gateway receiving an address mask request should return it with the
address mask field set to the 32-bit mask of the bits identifying the
subnet and network, for the subnet on which the request was received.
If the requesting host does not know its own IP address, it may leave
the source field zero; the reply should then be broadcast. However,
this approach should be avoided if at all possible, since it
increases the superfluous broadcast load on the network. Even when
the replies are broadcast, since there is only one possible address
mask for a subnet, there is no need to match requests with replies.
The "Identifier" and "Sequence Number" fields can be ignored.
James
Tony Schaffran wrote:
Does this have anyting to do with classfull and classless routing protocols?
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