diff options
| -rw-r--r-- | sys/netinet/ip_input.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index ae60dec..85c1b96 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -124,6 +124,10 @@ SYSCTL_INT(_net_inet_ip, IPCTL_KEEPFAITH, keepfaith, CTLFLAG_RW, &ip_keepfaith, 0, "Enable packet capture for FAITH IPv4->IPv6 translater daemon"); +static int ip_checkinterface = 1; +SYSCTL_INT(_net_inet_ip, OID_AUTO, check_interface, CTLFLAG_RW, + &ip_checkinterface, 0, "Verify packet arrives on correct interface"); + #ifdef DIAGNOSTIC static int ipprintfs = 0; #endif @@ -513,7 +517,7 @@ pass: * check that the packet is either arriving from the * correct interface or is locally generated. */ - if (ia->ia_ifp != m->m_pkthdr.rcvif && + if (ia->ia_ifp != m->m_pkthdr.rcvif && ip_checkinterface && (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) continue; |
