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Old 11th August 2010
GFORGX GFORGX is offline
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Default FreeBSD 8.0-RELEASE and VLANs


I have FreeBSD 8.0-RELEASE installed on two servers and the network card drivers being used are 're' and 'em'.

This problem occurs for both of them.

I have a switch port configured as trunk for 3 VLANs on a L3 switch, and 3 VLAN interfaces set up on FreeBSD server.

The problem is I don't see *any* traffic with tcpdump at all while having switch port configured as trunk and VLANs set up on FreeBSD.

I don't experience this problem with Linux server attached to the same or identically configured switch port with the same network card and the same VIDs configured.

Actually, I can't post "ifconfig" output, because of non-working VLANs I have only physical access to this server ATM, but I can give any information if it's needed

Thanks in advance for any ideas.
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Old 11th August 2010
GFORGX GFORGX is offline
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Tested just the same on my laptop

root@laptop> ifconfig /home/gforgx
em0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:1f:29:a0:8a:5f
inet6 fe80::21f:29ff:fea0:8a5f%em0 prefixlen 64 scopeid 0x1
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
inet netmask 0xff000000
pflog0: flags=100<PROMISC> metric 0 mtu 33200
em0.8: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:1f:29:a0:8a:5f
inet6 fe80::21f:29ff:fea0:8a5f%em0.8 prefixlen 64 scopeid 0x4
inet netmask 0xfff00000 broadcast
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
vlan: 8 parent interface: em0
root@laptop> tcpdump -nn /home/gforgx
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on em0.8, link-type EN10MB (Ethernet), capture size 96 bytes
03:21:46.218710 ARP, Request who-has tell, length 28
03:21:49.597597 ARP, Request who-has tell, length 28
2 packets captured
2 packets received by filter
0 packets dropped by kernel
ARP requests above are requests generated by my laptop while pinging 2 hosts.
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