diff options
Diffstat (limited to 'sys/netinet6/nd6.c')
| -rw-r--r-- | sys/netinet6/nd6.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c index 0e30825..0a67a8a 100644 --- a/sys/netinet6/nd6.c +++ b/sys/netinet6/nd6.c @@ -176,13 +176,25 @@ nd6_ifattach(struct ifnet *ifp) nd->flags = ND6_IFF_PERFORMNUD; - /* A loopback interface always has ND6_IFF_AUTO_LINKLOCAL. */ - if (V_ip6_auto_linklocal || (ifp->if_flags & IFF_LOOPBACK)) + /* A loopback interface always has ND6_IFF_AUTO_LINKLOCAL. + * XXXHRS: Clear ND6_IFF_AUTO_LINKLOCAL on an IFT_BRIDGE interface by + * default regardless of the V_ip6_auto_linklocal configuration to + * give a reasonable default behavior. + */ + if ((V_ip6_auto_linklocal && ifp->if_type != IFT_BRIDGE) || + (ifp->if_flags & IFF_LOOPBACK)) nd->flags |= ND6_IFF_AUTO_LINKLOCAL; - - /* A loopback interface does not need to accept RTADV. */ - if (V_ip6_accept_rtadv && !(ifp->if_flags & IFF_LOOPBACK)) - nd->flags |= ND6_IFF_ACCEPT_RTADV; + /* + * A loopback interface does not need to accept RTADV. + * XXXHRS: Clear ND6_IFF_ACCEPT_RTADV on an IFT_BRIDGE interface by + * default regardless of the V_ip6_accept_rtadv configuration to + * prevent the interface from accepting RA messages arrived + * on one of the member interfaces with ND6_IFF_ACCEPT_RTADV. + */ + if (V_ip6_accept_rtadv && + !(ifp->if_flags & IFF_LOOPBACK) && + (ifp->if_type != IFT_BRIDGE)) + nd->flags |= ND6_IFF_ACCEPT_RTADV; if (V_ip6_no_radr && !(ifp->if_flags & IFF_LOOPBACK)) nd->flags |= ND6_IFF_NO_RADR; |
