According to man 7 ip:
IP_RECVTTL
When this flag is set pass a IP_RECVTTL control message with the
time to live field of the received packet as a byte. Not
supported for SOCK_STREAM sockets.
This is not what happens. Instead of control message with type IP_RECVTTL
(12) I get message with type IP_TTL (2). What makes it more complicated
is that in FreeBSD (AFAIK othere OSes don't have it) control message has
type IP_RECVTTL.
Bug in man page? Or in kernel?
--
Hasso Tepper
Elion Enterprises Ltd.
WAN administrator
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