Re: [pfSense-discussion] (DUP!) duplicated packets when pinging internal server

[Fabio C Flores]

I realised this is due to a carp IP being MASTER on node2. So both node1 and node2 are responding for the LAN gateway IP, thats why I receive replies from both machines. Im now trying to sort the carp + lagg issue already reported in the list. Scott Ullrich wrote: I bet it is being caused by your usage of LAGG. Unfortunately you are on your own on this one as LAGG is not supported as of yet. On Jan 22, 2008 2:03 PM, Fabio C Flores <[EMAIL PROTECTED]> wrote: # ping 10.0.2.10 PING 10.0.2.10 (10.0.2.10): 56 data bytes 64 bytes from 10.0.2.10: icmp_seq=0 ttl=64 time=0.208 ms 64 bytes from 10.0.2.10: icmp_seq=0 ttl=63 time=0.328 ms (DUP!) 64 bytes from 10.0.2.10: icmp_seq=1 ttl=64 time=0.110 ms 64 bytes from 10.0.2.10: icmp_seq=1 ttl=63 time=0.230 ms (DUP!) ^C --- 10.0.2.10 ping statistics --- 2 packets transmitted, 2 packets received, +2 duplicates, 0% packet loss round-trip min/avg/max/stddev = 0.110/0.219/0.328/0.077 ms ---- # ifconfig em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 options=b<RXCSUM,TXCSUM,VLAN_MTU> inet 10.0.2.2 netmask 0xffff0000 broadcast 10.0.255.255 inet6 fe80::215:17ff:fe51:3f2e%em0 prefixlen 64 scopeid 0x1 ether 00:15:17:51:3f:2e media: Ethernet autoselect (1000baseTX <full-duplex>) status: active lagg: laggdev lagg0 em1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 options=b<RXCSUM,TXCSUM,VLAN_MTU> inet 192.168.0.221 netmask 0xffff0000 broadcast 192.168.255.255 inet6 fe80::215:17ff:fe51:3f2f%em1 prefixlen 64 scopeid 0x2 ether 00:15:17:51:3f:2f media: Ethernet autoselect (100baseTX <full-duplex>) status: active bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING> inet 10.1.0.2 netmask 0xffffff00 broadcast 10.1.0.255 inet6 fe80::21c:23ff:fee1:f846%bge0 prefixlen 64 scopeid 0x3 ether 00:1c:23:e1:f8:46 media: Ethernet autoselect (1000baseTX <full-duplex>) status: active bge1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING> inet 10.0.2.5 netmask 0xffff0000 broadcast 10.0.255.255 inet6 fe80::21c:23ff:fee1:f847%bge1 prefixlen 64 scopeid 0x4 ether 00:15:17:51:3f:2e media: Ethernet autoselect (1000baseTX <full-duplex>) status: active lagg: laggdev lagg0 pfsync0: flags=41<UP,RUNNING> mtu 1348 pfsync: syncdev: bge0 syncpeer: 224.0.0.240 maxupd: 128 enc0: flags=0<> mtu 1536 pflog0: flags=100<PROMISC> mtu 33208 lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet 127.0.0.1 netmask 0xff000000 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x8 carp0: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 192.168.0.223 netmask 0xffffff00 carp: MASTER vhid 11 advbase 1 advskew 100 carp1: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 10.0.2.3 netmask 0xffff0000 carp: MASTER vhid 12 advbase 1 advskew 100 tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500 inet6 fe80::215:17ff:fe51:3f2e%tun0 prefixlen 64 scopeid 0xb inet 192.168.66.1 --> 192.168.66.2 netmask 0xffffffff Opened by PID 370 lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 10.0.2.7 netmask 0xffff0000 broadcast 10.0.255.255 inet6 fe80::215:17ff:fe51:3f2e%lagg0 prefixlen 64 scopeid 0xc ether 00:15:17:51:3f:2e media: Ethernet autoselect status: active lagg: laggproto failover laggport bge1 =4<ACTIVE> laggport em0 =5<MASTER,ACTIVE> ----- # netstat -nr Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 192.168.0.1 UGS 0 0 em1 10/16 link#12 UCS 0 2 lagg0 10.0.1.205 00:16:ec:9b:c8:dc UHLW 1 33 lagg0 1165 10.0.2.3 10.0.2.3 UH 0 0 carp1 10.0.2.6 00:15:17:51:4a:16 UHLW 1 2664 lagg0 234 10.0.2.10 00:19:b9:eb:62:7d UHLW 1 1447 lagg0 1151 10.1/24 link#3 UC 0 0 bge0 10.1.0.1 00:1c:23:e1:f7:d1 UHLW 1 5294 bge0 1127 127.0.0.1 127.0.0.1 UH 0 0 lo0 192.168.0/16 link#2 UC 0 1 em1 192.168.0.1 00:17:9a:58:20:3f UHLW 2 1771 em1 918 192.168.0.2 00:16:3e:31:80:07 UHLW 1 1 em1 925 192.168.0.102 00:15:00:00:12:1f UHLW 1 0 em1 972 192.168.0.223 192.168.0.223 UH 0 0 carp0 192.168.66 192.168.66.2 UGS 0 6 tun0 192.168.66.2 192.168.66.1 UH 1 0 tun0