diff options
Diffstat (limited to 'sys/netinet/if_ether.c')
| -rw-r--r-- | sys/netinet/if_ether.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c index 8c8f01f..dd82925 100644 --- a/sys/netinet/if_ether.c +++ b/sys/netinet/if_ether.c @@ -506,10 +506,15 @@ arpintr() * but formerly didn't normally send requests. */ static int log_arp_wrong_iface = 1; +static int log_arp_movements = 1; SYSCTL_INT(_net_link_ether_inet, OID_AUTO, log_arp_wrong_iface, CTLFLAG_RW, &log_arp_wrong_iface, 0, "log arp packets arriving on the wrong interface"); +SYSCTL_INT(_net_link_ether_inet, OID_AUTO, log_arp_movements, CTLFLAG_RW, + &log_arp_movements, 0, + "log arp replies from MACs different the the one in the cache"); + static void in_arpinput(m) @@ -595,12 +600,13 @@ in_arpinput(m) } if (sdl->sdl_alen && bcmp((caddr_t)ea->arp_sha, LLADDR(sdl), sdl->sdl_alen)) { - if (rt->rt_expire) - log(LOG_INFO, "arp: %s moved from %6D to %6D on %s%d\n", - inet_ntoa(isaddr), (u_char *)LLADDR(sdl), ":", - ea->arp_sha, ":", - ac->ac_if.if_name, ac->ac_if.if_unit); - else { + if (rt->rt_expire) { + if (log_arp_movements) + log(LOG_INFO, "arp: %s moved from %6D to %6D on %s%d\n", + inet_ntoa(isaddr), (u_char *)LLADDR(sdl), ":", + ea->arp_sha, ":", + ac->ac_if.if_name, ac->ac_if.if_unit); + } else { log(LOG_ERR, "arp: %6D attempts to modify permanent entry for %s on %s%d\n", ea->arp_sha, ":", inet_ntoa(isaddr), |
