Subject: Re: IPv4 multicast set/getsockopt, specifying interface index
To: None <email@example.com>
From: Hiroto Shibuya <firstname.lastname@example.org>
Date: 01/12/2001 23:17:34
Excerpt of message (sent 13 January 2001) by email@example.com:
> the following patch uses 0.0.0.0/8 as 24bit interface index value.
> on getsockopt(IP_MULTICAST_IF) it will return the value the user has
> set. does it look right, or messy?
> (Dave Thaler suggested this based on RFC1724 section 3.3 - RIPv2
> MIB, and he said there's other system doing/will be doing
I was not aware of that part of RFC1724, but within our router, in
private MIBs and internal implementation, next-hop value has been used
as ifIndex if it falls in 0.0.0.0/8. I thought it was ugly hack but
now I feel somewhat better to know that it is a "standard" hack.
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