[Bug 498987] Re: vlan

Thomas Schweikle 498987 at bugs.launchpad.net
Thu Sep 1 11:32:33 UTC 2011


It's the same for 11.04, 10.10, 10.04, 9.10, 9.04 ...

I have set up on PC1:
/etc/networking/interfaces:
! auto eth0.114
! iface eth0.114 inet manual
!  vlan-raw-device eth0
!
!auto vm1
!iface vm1 inet static
!  address 192.168.114.94
!  netmask 255.255.254.0
!  bridge_fd 3
!  bridge_hello 2
!  bridge_stp off
!  bridge_ports eth0.114

after restarting:
!root at adga:~# ifconfig vm1
!vm1       Link encap:Ethernet  Hardware Adresse 00:24:1d:df:f0:38  
!          inet Adresse:192.168.114.94  Bcast:192.168.115.255  Maske:255.255.254.0
!          inet6-Adresse: fe80::224:1dff:fedf:f038/64 Gültigkeitsbereich:Verbindung
!          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
!          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
!          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
!          Kollisionen:0 Sendewarteschlangenlänge:0 
!          RX bytes:0 (0.0 B)  TX bytes:2018 (2.0 KB)

!root at adga:~# ifconfig eth0.114
!eth0.114  Link encap:Ethernet  Hardware Adresse 00:24:1d:df:f0:38  
!          inet6-Adresse: fe80::224:1dff:fedf:f038/64 Gültigkeitsbereich:Verbindung
!          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
!          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
!          TX packets:25 errors:0 dropped:0 overruns:0 carrier:0
!          Kollisionen:0 Sendewarteschlangenlänge:0 
!          RX bytes:0 (0.0 B)  TX bytes:2496 (2.4 KB)

!root at adga:~# brctl show
!bridge name     bridge id               STP enabled     interfaces
!vm1             8000.00241ddff038       no              eth0.114

Pinging the interface works:
!root at adga:~# ping 192.168.114.94
!PING 192.168.114.94 (192.168.114.94) 56(84) bytes of data.
!64 bytes from 192.168.114.94: icmp_req=1 ttl=64 time=0.039 ms
!64 bytes from 192.168.114.94: icmp_req=2 ttl=64 time=0.036 ms
!^C
!--- 192.168.114.94 ping statistics ---
!2 packets transmitted, 2 received, 0% packet loss, time 999ms
!rtt min/avg/max/mdev = 0.036/0.037/0.039/0.006 ms


On PC2:
/etc/network/interfaces:
!auto eth0.114
!iface eth0.114 inet manual
!  vlan-raw-device eth0
!
!auto vm2
!iface vm2 inet static
!  address 192.168.114.98
!  netmask 255.255.254.0
!  bridge_fd 3
!  bridge_hello 2
!  bridge_maxage 12
!  bridge_stp off
!  bridge_ports eth0.114

!tps at ivory:~$ ifconfig vm2
!vm2       Link encap:Ethernet  Hardware Adresse 00:1e:68:06:4b:e9  
!          inet Adresse:192.168.114.98  Bcast:192.168.115.255  Maske:255.255.254.0
!          inet6-Adresse: fe80::21e:68ff:fe06:4be9/64 Gültigkeitsbereich:Verbindung
!          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
!          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
!          TX packets:224 errors:0 dropped:0 overruns:0 carrier:0
!          Kollisionen:0 Sendewarteschlangenlänge:0 
!          RX bytes:0 (0.0 B)  TX bytes:32662 (32.6 KB)

!tps at ivory:~$ ifconfig eth0.114
!eth0.114  Link encap:Ethernet  Hardware Adresse 00:1e:68:06:4b:e9  
!          inet6-Adresse: fe80::21e:68ff:fe06:4be9/64 Gültigkeitsbereich:Verbindung
!          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metrik:1
!          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
!          TX packets:260 errors:0 dropped:0 overruns:0 carrier:0
!          Kollisionen:0 Sendewarteschlangenlänge:0 
!          RX bytes:0 (0.0 B)  TX bytes:41537 (41.5 KB)

!tps at ivory:~$ brctl show
!bridge name     bridge id               STP enabled     interfaces
!vm2             8000.001e68064be9       no              eth0.114

pinging the own interface works:
!tps at ivory:~$ ping 192.168.114.98
!PING 192.168.114.98 (192.168.114.98) 56(84) bytes of data.
!64 bytes from 192.168.114.98: icmp_req=1 ttl=64 time=0.103 ms
!64 bytes from 192.168.114.98: icmp_req=2 ttl=64 time=0.046 ms
!^C
!--- 192.168.114.98 ping statistics ---
!2 packets transmitted, 2 received, 0% packet loss, time 999ms
!rtt min/avg/max/mdev = 0.046/0.074/0.103/0.029 ms

Now trying to ping the other system:
!tps at ivory:~$ ping 192.168.114.94
!PING 192.168.114.94 (192.168.114.94) 56(84) bytes of data.
!From 192.168.114.98 icmp_seq=1 Destination Host Unreachable
!From 192.168.114.98 icmp_seq=2 Destination Host Unreachable
!From 192.168.114.98 icmp_seq=3 Destination Host Unreachable
!^C
!--- 192.168.114.94 ping statistics ---
!5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4004ms

doesn't work! Check routing:
PC1:
!root at adga:~# route -n
!Kernel-IP-Routentabelle
!Ziel            Router          Genmask         Flags Metric Ref    Use Iface
!192.168.114.0   0.0.0.0         255.255.254.0   U     0      0        0 vm1

PC2:
!tps at ivory:~$ route -n
!Kernel-IP-Routentabelle
!Ziel            Router          Genmask         Flags Metric Ref    Use Iface
!192.168.114.0   0.0.0.0         255.255.254.0   U     0      0        0 vm2

Looks OK to me!
Setting up the same, but without vlan tags works out of the box.

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https://bugs.launchpad.net/bugs/498987

Title:
  vlan

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