wg-multicast - Re: question about PIM Null-Registers

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Re: question about PIM Null-Registers

From: Dino Farinacci <>
To:
Cc: , ,
Subject: Re: question about PIM Null-Registers
Date: Mon, 19 May 2003 13:59:39 -0700

>> If the header length of the dummy IP header is set,

What do you mean by set? It should be set to 20, no? Are you saying your
definition of a dummy IP header is one with a Total Length field of 0?

>> You know its IP version number from the outer IP header.

That isn't speced anywhere. What if the outer header was IPv4 and the
register was for an IPv6 multicast packet?

>> This does leave the Group/Source exposed since there is no checksum
>> covering it.

Right.

Dino

Re: question about PIM Null-Registers, (continued)

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Re: question about PIM Null-Registers