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ipv6: add special mode forwarding=2 to send RS while configured as router 

Similar to accepting router advertisement, the IPv6 stack does not send router
solicitations if forwarding is enabled.

This patch enables this behavior to be overruled by setting forwarding to the
special value 2.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2010-09-03 03:04:20 +00:00 committed by David S. Miller
parent 65e9b62d45
commit c3bccac2fa
1 changed files with 2 additions and 1 deletions
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3
net/ipv6/addrconf.c
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@ -2964,7 +2964,8 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
start sending router solicitations.
*/
if (ifp->idev->cnf.forwarding == 0 &&
if ((ifp->idev->cnf.forwarding == 0 ||
ifp->idev->cnf.forwarding == 2) &&
ifp->idev->cnf.rtr_solicits > 0 &&
(dev->flags&IFF_LOOPBACK) == 0 &&
(ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {