Bound, Jim wrote:
I believe same as Savela here. Pretty obvious to me. /jim
Yep - same here.
Fred [EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Markku Savela
Sent: Tuesday, October 28, 2003 3:21 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: RFC 2460 issue
Off the top of my head I know that RFC3493 needs to beupdated since
the IPV6_UNICAST_HOPS socket option now accepts 0 as a valid hop count. I really do not understand what a hop count of 0 implies and why we should bother updating the RFCs.Heh, yes. I too wondered about what I should do if application sets TTL = 0. There are two choices
a) Packets go to /dev/null (perhaps some obscure testing feature?)
b) Just let packets with TTL=0 go out.
I chose (b), because
- TTL is naturally checked only on fowarding, not when sending own packets out. Thus, any TTL just gets accepted and sent.
If packet with TTL=0 is for this node, it is accepted (again, because TTL test is only for forwarding).
Forwarding decrements TTL and if result is 0 or < 0, packet dropped (with appropriate ICMP if needed).
I'm happy with above semantics. I don't see any need to worry about it too much.
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