Opened 13 years ago
Last modified 7 years ago
#9648 closed defect
duplicate network packets in bridged mode — at Initial Version
| Reported by: | kamensky | Owned by: | |
|---|---|---|---|
| Component: | network/hostif | Version: | VirtualBox 4.1.2 |
| Keywords: | duplicate packets, bridged, ping | Cc: | |
| Guest type: | other | Host type: | Mac OS X |
Description
I am running a guest dibbler on a host carrot. The network mode is set to
bridged. The home network includes another computer, gaspode. When I ping
the guest from gaspode or conversely, I get duplicates:
moshe@dibbler:~(244)-> ping -c 3 gaspode PING gaspode (192.168.1.69) 56(84) bytes of data. 64 bytes from gaspode (192.168.1.69): icmp_req=1 ttl=64 time=50.4 ms 64 bytes from carrot (192.168.1.66): icmp_req=1 ttl=63 time=50.4 ms (DUP!) 64 bytes from gaspode (192.168.1.69): icmp_req=2 ttl=64 time=4.65 ms 64 bytes from carrot (192.168.1.66): icmp_req=2 ttl=63 time=4.74 ms (DUP!) 64 bytes from gaspode (192.168.1.69): icmp_req=3 ttl=64 time=10.5 ms --- gaspode ping statistics --- 3 packets transmitted, 3 received, +2 duplicates, 0% packet loss, time 2003ms rtt min/avg/max/mdev = 4.659/24.153/50.447/21.560 ms
moshe@gaspode:~(1894)-> ping -c 3 dibbler PING dibbler.gateway.2wire.net (192.168.1.65) 56(84) bytes of data. From carrot (192.168.1.66): icmp_seq=1 Redirect Host(New nexthop: dibbler (192.168.1.65)) 64 bytes from dibbler (192.168.1.65): icmp_req=1 ttl=64 time=38.6 ms 64 bytes from dibbler (192.168.1.65): icmp_req=1 ttl=63 time=38.6 ms (DUP!) From carrot (192.168.1.66): icmp_seq=2 Redirect Host(New nexthop: dibbler (192.168.1.65)) 64 bytes from dibbler (192.168.1.65): icmp_req=2 ttl=64 time=60.1 ms 64 bytes from dibbler (192.168.1.65): icmp_req=2 ttl=63 time=60.1 ms (DUP!) From carrot (192.168.1.66): icmp_seq=3 Redirect Host(New nexthop: dibbler (192.168.1.65)) 64 bytes from dibbler (192.168.1.65): icmp_req=3 ttl=64 time=83.5 ms --- dibbler.gateway.2wire.net ping statistics --- 3 packets transmitted, 3 received, +2 duplicates, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 38.643/56.245/83.575/16.719 ms
There is no problem when pinging to or from the host. I am also getting
duplicates when pinging external addresses from the guest. However,
other external internet services seem to work properly with the guest,
whereas I cannot use ssh between the guest and gaspode (in either
direction).
Here is a link to a thread on the mailing list where I tried to solve the problem:
http://sourceforge.net/mailarchive/message.php?msg_id=28100263
I attach the vbox log file, and a Wireshark capture of a ping command (Wireshark running on the host). More information below.
IP addresses and OSes:
dibbler (guest), Gentoo Linux, 192.168.1.65 carrot (host), MacOsX (Darwin) 10.8.0, 192.168.1.66 gaspode Gentoo Linux, 192.168.1.69 router 192.168.1.254
The host is connected by wireless (airport) to the router. gaspode is
connected by cable to the router.
Routing table on dibbler (guest):
moshe@dibbler:~(248)-> netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 0 eth1 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
Routing table on carrot (host):
moshe@carrot:~(248)-> netstat -nr Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 192.168.1.254 UGSc 26 38 en1 127 127.0.0.1 UCS 0 0 lo0 127.0.0.1 127.0.0.1 UH 11 976428 lo0 169.254 link#5 UCS 0 0 en1 192.168.1 link#5 UCS 3 0 en1 192.168.1.65 8:0:27:3a:49:3a UHLWI 1 460 en1 844 192.168.1.66 127.0.0.1 UHS 2 3158 lo0 192.168.1.69 58:b0:35:ee:a5:5f UHLWI 4 842 en1 837 192.168.1.254 0:25:3c:c0:f3:49 UHLWI 46 2440 en1 1200
Routing table on gaspode:
moshe@gaspode:~(1909)-> netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 0 eth0 127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
vbox log file