From: Patrick McHardy <[EMAIL PROTECTED]>
Date: Mon, 19 Mar 2007 16:27:29 +0100

> Mhh actually this looks intentional:
> 
> icmpv6_send and some other output functions do:
>       int hlimit;
> ...
>         if (hlimit < 0)
>                 hlimit = dst_metric(dst, RTAX_HOPLIMIT);
>         if (hlimit < 0)
>                 hlimit = ipv6_get_hoplimit(dst->dev);

Yep, negative value has a specific meaning.

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