diff options
Diffstat (limited to 'sys/netinet/if_ether.c')
| -rw-r--r-- | sys/netinet/if_ether.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c index 8e2daeb..52d7db2 100644 --- a/sys/netinet/if_ether.c +++ b/sys/netinet/if_ether.c @@ -496,6 +496,7 @@ arpintr(struct mbuf *m) static int log_arp_wrong_iface = 1; static int log_arp_movements = 1; static int log_arp_permanent_modify = 1; +static int allow_multicast = 0; SYSCTL_INT(_net_link_ether_inet, OID_AUTO, log_arp_wrong_iface, CTLFLAG_RW, &log_arp_wrong_iface, 0, @@ -506,7 +507,8 @@ SYSCTL_INT(_net_link_ether_inet, OID_AUTO, log_arp_movements, CTLFLAG_RW, SYSCTL_INT(_net_link_ether_inet, OID_AUTO, log_arp_permanent_modify, CTLFLAG_RW, &log_arp_permanent_modify, 0, "log arp replies from MACs different than the one in the permanent arp entry"); - +SYSCTL_INT(_net_link_ether_inet, OID_AUTO, allow_multicast, CTLFLAG_RW, + &allow_multicast, 0, "accept multicast addresses"); static void in_arpinput(struct mbuf *m) @@ -551,8 +553,8 @@ in_arpinput(struct mbuf *m) return; } - if (ETHER_IS_MULTICAST(ar_sha(ah))) { - log(LOG_NOTICE, "in_arp: %*D is multicast\n", + if (allow_multicast == 0 && ETHER_IS_MULTICAST(ar_sha(ah))) { + log(LOG_NOTICE, "arp: %*D is multicast\n", ifp->if_addrlen, (u_char *)ar_sha(ah), ":"); return; } |
