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Old 01-15-2010, 06:14 AM   #1
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Why socket option "IPV6_ROUTER_ALERT" is invalid?

I want router catch the ip packet which mark router alert label, change it and send to the next hop. Not just forward it immediately.
So I set IP_ROUTER_ALERT and IPV6_ROUTER_ALERT option for ipv4 and ipv6 socket. IP_ROUTER_ALERT was just fine and I can do what I expect. However when I set on IPV6_ROUTER_ALERT, it tells me "Protocol not available" (errno = 92). And This option can be found in "$Kernel/net/ipv6/ipv6_sockglue.c"

Could anyone help? Thanks ~~~

Last edited by heartstring; 01-15-2010 at 06:55 AM.
Old 01-16-2010, 05:13 PM   #2
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Is your kernel compiled with IPv6 support enabled?
Kevin Barry
Old 01-16-2010, 08:26 PM   #3
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I think I've opened all of the IPv6 features...(version 2.6.28)
Originally Posted by ta0kira View Post
Is your kernel compiled with IPv6 support enabled?
Kevin Barry


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