0 Replies Latest reply on Mar 26, 2008 10:29 AM by James Bondo

    Duplicate Packets from VMs

    James Bondo Novice

      Setup is VMWare Server 2.0 beta 1 on Windows 2008  version 6.0.6001 (which I believe to be RTM, may be RC).

      64-bit VMWare Server

      64-bit Ubuntu guest

      32-bit WIndows guest (not relevant, and turned off during this test, but I see the same thing happen with it)

      Another Ubuntu standalone box on the network.

       

      All network adapters are bridged.

       

      Problem:

      I get duplicate packets all over the network for the vmware guests.   Following is the output from a ping on the 64-bit ubuntu guest:

      PING unix-box (192.168.5.105) 56(84) bytes of data.

      64 bytes from unix-box (192.168.5.105): icmp_seq=1 ttl=64 time=7.60 ms

      64 bytes from unix-box (192.168.5.105): icmp_seq=1 ttl=63 time=7.62 ms (DUP!)

      64 bytes from unix-box (192.168.5.105): icmp_seq=1 ttl=64 time=7.62 ms (DUP!)

      64 bytes from unix-box (192.168.5.105): icmp_seq=1 ttl=63 time=7.63 ms (DUP!)

      From vm-host (192.168.5.99): icmp_seq=2 Redirect Network(New nexthop: unix-box (192.168.5.105))

      64 bytes from unix-box (192.168.5.105): icmp_seq=2 ttl=64 time=0.577 ms

      64 bytes from unix-box (192.168.5.105): icmp_seq=2 ttl=63 time=0.585 ms (DUP!)

      64 bytes from unix-box (192.168.5.105): icmp_seq=2 ttl=64 time=0.590 ms (DUP!)

      64 bytes from unix-box (192.168.5.105): icmp_seq=2 ttl=63 time=0.596 ms (DUP!)

      --- unix-box ping statistics ---

      2 packets transmitted, 2 received, +6 duplicates, 0% packet loss, time 999ms

       

      The is the output from tcpdump on the standalone unix-box (tpcdump -i eth 0 host vmware-guest)

      10:08:37.627949 arp reply unix-box is-at unix-box-mac (oui Unknown)

      10:08:37.628182 IP vm-guest > unix-box: ICMP echo request, id 38673, seq 1, length 64

      10:08:37.628243 IP unix-box > vm-guest: ICMP echo reply, id 38673, seq 1, length 64

      10:08:37.628186 IP vm-guest > unix-box: ICMP echo request, id 38673, seq 1, length 64

      10:08:37.628264 IP unix-box > vm-guest: ICMP echo reply, id 38673, seq 1, length 64

      10:08:38.620088 IP vm-guest > unix-box: ICMP echo request, id 38673, seq 2, length 64

      10:08:38.620148 IP unix-box > vm-guest: ICMP echo reply, id 38673, seq 2, length 64

      10:08:38.620094 IP vm-guest > unix-box: ICMP echo request, id 38673, seq 2, length 64

      10:08:38.620171 IP unix-box > vm-guest: ICMP echo reply, id 38673, seq 2, length 64

       

      Does anyone have an ideas?  I searched and came up with nothing.