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i am debugging an issue with Guest VM's ethernet interface isnt receving any packets
the packet path is as below;
Guest VM Host OS
me0 <-- --> macvtap0 <--> eth0
the tx direction from me0 packets are visible at macvtap0
while, the packets recvd through eth0 on HostOS are received well at macvtap0. but, all are dropped as error packets
i am unable to troubleshoot the issue
any pointers will help
root@local-node:~# ifconfig macvtap0 ; tcpdump -i macvtap0 -c 2 ;ifconfig macvtap0
macvtap0 Link encap:Ethernet HWaddr 74:e7:98:b6:e4:1a
inet addr:10.0.50.179 Bcast:10.0.255.255 Mask:255.255.0.0
inet6 addr: fe80::76e7:98ff:feb6:e41a/64 Scope:Link
UP BROADCAST RUNNING ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:4027390 errors:4023310 dropped:4023310 overruns:0 frame:0
TX packets:40317 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:432084441 (412.0 MiB) TX bytes:1723136 (1.6 MiB)
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on macvtap0, link-type EN10MB (Ethernet), capture size 262144 bytes
09:58:22.643089 IP6 fe80::4e73:4fff:fe09:6501.dhcpv6-client > ff02::1:2.dhcpv6-server: dhcp6 solicit
09:58:22.689583 IP 10.0.0.2 > 224.0.0.18: VRRPv2, Advertisement, vrid 7, prio 95, authtype none, intvl 1s, length 20
2 packets captured
4 packets received by filter
0 packets dropped by kernel
2 packets dropped by interface
macvtap0 Link encap:Ethernet HWaddr 74:e7:98:b6:e4:1a
inet addr:10.0.50.179 Bcast:10.0.255.255 Mask:255.255.0.0
inet6 addr: fe80::76e7:98ff:feb6:e41a/64 Scope:Link
UP BROADCAST RUNNING ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:4027392 errors:4023312 dropped:4023312 overruns:0 frame:0
TX packets:40317 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:432084650 (412.0 MiB) TX bytes:1723136 (1.6 MiB)
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During ping from an external device, the arp resolution is happening. this means, the broadcast packets are being received. just that unicast packets are dropped all as error packets
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