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ICMP Solicitation Frames

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CarlT

CarlT

IS-IT--Management
Jan 7, 2002
1
US
Hi Folks,
I recently took a trace of my PC dialing into my local ISP. Once successfully connected via PPP, I notice my pc sent several ICMP solicitation frames to an address of 224.0.0.2. Can anyone tell me if there is something special about that address? Is it a reserved address of IP subnet?

Carl T.
 
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Yes, 224.0.0.2 is a well known multicast address that all routers listen to. If you send an IP packet to 224.0.0.2, you are saying "attention all routers on this subnet."
 
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