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bogus@does.not.exist.com
2009-Aug-06 20:39 UTC
No subject

^C
--- 10.100.100.74 ping statistics ---
1 packets transmitted, 1 received, +63 duplicates, +1 errors, 0%
packet loss, time 0ms
rtt min/avg/max/mdev =3D 0.263/2.481/4.266/1.147 ms
> This ping is external box to guest,
> correct?
Either direction, external box->guest or guest->external box
> Is it the external box that gets duplicates or the guest?
> What happens when you ping the other way?
> What does tcpdump show on both sides when you ping?
ping -c 1 guest (10.100.100.74) -> external (10.91.73.252) (these are
on the same subnet)

guest:
15:29:51.342545 IP 10.100.100.74 > 10.91.73.252: ICMP echo request, id
64778, seq 1, length 64
15:29:51.342716 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.342734 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.342799 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.342835 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.342909 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.342955 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343004 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343043 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343105 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343151 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343277 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343293 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343355 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343403 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343524 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343550 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343604 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343654 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343770 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343795 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343857 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343898 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343968 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.343980 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344052 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344103 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344225 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344250 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344302 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344351 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344470 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344495 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344550 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344599 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344689 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344709 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344749 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344798 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344890 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344910 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344949 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.344997 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345061 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345100 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345153 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345207 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345295 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345315 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345352 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345402 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345491 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345510 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345552 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345601 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345692 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345712 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345790 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345806 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345867 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345886 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345947 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.345996 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.346083 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:29:51.346103 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64

external:
15:24:25.892748 IP 10.100.100.74 > 10.91.73.252: ICMP echo request, id
64778, seq 1, length 64
15:24:25.892770 IP 10.91.73.252 > 10.100.100.74: ICMP echo reply, id
64778, seq 1, length 64
15:24:25.896254 IP 10.91.73.253 > 10.91.73.252: ICMP time exceeded
in-transit, length 92
(note 253 is the IP address of eth0 on the KVM host... odd)

ping -c 1 external (10.91.73.252) -> guest (10.100.100.74)

external:
15:28:38.278291 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:28:38.278590 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.278760 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.278881 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279024 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279064 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279157 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279180 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279299 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279319 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279361 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279457 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279478 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279567 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279612 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279693 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279738 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279786 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279877 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.279991 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280000 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280085 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280105 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280173 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280202 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280228 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280271 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280312 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280401 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280447 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280534 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280548 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280581 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280634 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280766 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280773 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280805 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280855 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280902 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.280934 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281014 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281064 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281113 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281159 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281215 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281253 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281300 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281344 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281408 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281447 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281503 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281542 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281644 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281670 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281723 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281763 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281816 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281847 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281918 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.281937 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.282059 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.282086 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.282153 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.282159 IP 10.91.73.253 > 10.91.73.252: ICMP time exceeded
in-transit, length 92
15:28:38.282175 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:28:38.282204 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64

guest:
15:34:03.722851 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.722880 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723023 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723050 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723155 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723165 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723305 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723316 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723340 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723349 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723442 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723452 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723469 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723478 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723578 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723588 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723613 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723623 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723639 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723658 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723744 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723753 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723768 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723776 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723855 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723864 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723907 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723916 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.723971 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.723981 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724004 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724013 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724067 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724078 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724161 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724171 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724249 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724258 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724275 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724284 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724362 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724371 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724393 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724402 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724457 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724467 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724491 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724500 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724529 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724538 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724561 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724570 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724599 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724608 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724663 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724683 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724726 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724737 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724783 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724806 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724838 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724848 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724882 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724891 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.724917 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.724925 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725015 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725027 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725063 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725080 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725084 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725102 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725136 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725156 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725186 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725199 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725222 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725230 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725296 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725308 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725352 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725360 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725408 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725416 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725442 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725450 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725497 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725505 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725537 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725545 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725577 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725596 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725629 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725637 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725691 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725701 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725737 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725744 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725777 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725797 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725829 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725837 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725913 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725924 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.725961 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.725969 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726009 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726016 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726050 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726058 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726100 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726107 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726136 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726143 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726176 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726195 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726228 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726235 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726333 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726343 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726378 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726385 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726424 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726431 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726465 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726473 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
15:34:03.726505 IP 10.91.73.252 > 10.100.100.74: ICMP echo request, id
30800, seq 1, length 64
15:34:03.726512 IP 10.100.100.74 > 10.91.73.252: ICMP echo reply, id
30800, seq 1, length 64
> A couple of extra datapoints to check:
> - What if you assign a different IP to the host (in the same subnet) and
> =C2=A0try external guest to host?
I'm not sure what you mean by external guest.  If I change the IP of
the host, nothing changes except the time exceeed messages seen by the
external system have the new IP.
> - Is the card in promisc mode? What if you disable promisc mode?
No, I'm using the physical MAC in the guest to avoid promisc.
> Also, it seems that you have an external bridge that sends your outgoing
> packets back to you. Is that right?
Not that I'm aware of.  My config is simply:

eth0 - host nic
eth10 - vhost nic

I can ifdown eth0 and switch the host to eth10 and don't get duplicate
packets on host<->external pings.  Thanks,

Alex
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