Subject: Re: A question on Mcast MIB?

From: Bill Fenner <[email-masked]>
Date: Tue, 17 Oct 2000 18:41:44 -0700

>Assume the datagrams is coming from interface 0, e.g. ifIndex=0, then
>how do you explain this value?

ifIndex may not be zero.  RFC2863 says:

ifIndex OBJECT-TYPE
    SYNTAX      InterfaceIndex
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "A unique value, greater than zero, for each interface.  It
            is recommended that values are assigned contiguously
            starting from 1.  The value for each interface sub-layer
            must remain constant at least from one re-initialization of
            the entity's network management system to the next re-
            initialization."

  Bill