diff options
Diffstat (limited to 'sys/netinet/if_ether.c')
| -rw-r--r-- | sys/netinet/if_ether.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c index 434fa7d..63ea545 100644 --- a/sys/netinet/if_ether.c +++ b/sys/netinet/if_ether.c @@ -851,6 +851,15 @@ reply: inet_ntoa(itaddr)); #endif } else { + /* + * Return proxied ARP replies only on the interface + * where this network resides. Otherwise we may + * conflict with the host we are proxying for. + */ + if (rt->rt_ifp != ifp) { + RT_UNLOCK(rt); + goto drop; + } sdl = SDL(rt->rt_gateway); (void)memcpy(ar_tha(ah), ar_sha(ah), ah->ar_hln); (void)memcpy(ar_sha(ah), LLADDR(sdl), ah->ar_hln); |
