mb2297
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Bridging multiple vlans
Hello experts,
I've got a machine with three physical interfaces. Over each of the physical interfaces I run two vlans - an operational vlan and a management vlan.
The operational vlans are segmented so that there are 3 different subnets on each physical interface:
eth1 has eth1.1 (10.1.1.0/24)
eth2 has eth2.2 (10.1.2.0/24)
eth3 has eth3.3 (10.1.3.0/24)
The management vlan is currently segmented into subnets also:
eth1 has eth1.10 (10.10.1.0/24)
eth2 has eth2.10 (10.10.2.0/24)
eth3 has eth3.10 (10.10.3.0/24)
I'd like to have it so there's a single management subnet shared between all the machines:
e.g.
eth1 has eth1.10 (10.10.0.0/16)
eth2 has eth1.10 (10.10.0.0/16)
eth3 has eth1.10 (10.10.0.0/16)
I tried defining all the management vlans and then bridging them all with a single interface with the correct /16 subnet mask. My /etc/network/interfaces for that follows. The machine that is being configured is given 10.10.10.10 as it's IP address.
# Physical interfaces
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet manual
auto eth2
iface eth2 inet manual
auto eth3
iface eth3 inet manual
# Management network interfaces
auto eth1.10
iface eth1.10 inet manual
auto eth2.10
iface eth2.10 inet manual
auto eth3.10
iface eth3.10 inet manual
auto manbr0
iface manbr0 inet static
bridge-ports eth1.10 eth2.10 eth3.10
address 10.10.10.10
netmask 255.255.0.0
When I try to bring up manbr0, I get:
SIOCSIFADDR: No such device
manbr0: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device
manbr0: ERROR while getting interface flags: No such device
Failed to bring up manbr0.
How can I achieve what I'm trying to do?
Many thanks,
Matt.
I've got a machine with three physical interfaces. Over each of the physical interfaces I run two vlans - an operational vlan and a management vlan.
The operational vlans are segmented so that there are 3 different subnets on each physical interface:
eth1 has eth1.1 (10.1.1.0/24)
eth2 has eth2.2 (10.1.2.0/24)
eth3 has eth3.3 (10.1.3.0/24)
The management vlan is currently segmented into subnets also:
eth1 has eth1.10 (10.10.1.0/24)
eth2 has eth2.10 (10.10.2.0/24)
eth3 has eth3.10 (10.10.3.0/24)
I'd like to have it so there's a single management subnet shared between all the machines:
e.g.
eth1 has eth1.10 (10.10.0.0/16)
eth2 has eth1.10 (10.10.0.0/16)
eth3 has eth1.10 (10.10.0.0/16)
I tried defining all the management vlans and then bridging them all with a single interface with the correct /16 subnet mask. My /etc/network/interfaces for that follows. The machine that is being configured is given 10.10.10.10 as it's IP address.
# Physical interfaces
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet manual
auto eth2
iface eth2 inet manual
auto eth3
iface eth3 inet manual
# Management network interfaces
auto eth1.10
iface eth1.10 inet manual
auto eth2.10
iface eth2.10 inet manual
auto eth3.10
iface eth3.10 inet manual
auto manbr0
iface manbr0 inet static
bridge-ports eth1.10 eth2.10 eth3.10
address 10.10.10.10
netmask 255.255.0.0
When I try to bring up manbr0, I get:
SIOCSIFADDR: No such device
manbr0: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device
manbr0: ERROR while getting interface flags: No such device
Failed to bring up manbr0.
How can I achieve what I'm trying to do?
Many thanks,
Matt.
djohnson104
What hardware are you using?
ASKER
They're all ubuntu boxes with identical NICs (I don't remember the manufacturer/model), linked together via a NetGear switch.
The switch isn't capable of tagging or detagging the frames -- that all gets left up to the linux kernel.
There's no fancy hardware stuff going on at all.
Thanks,
Matt.
The switch isn't capable of tagging or detagging the frames -- that all gets left up to the linux kernel.
There's no fancy hardware stuff going on at all.
Thanks,
Matt.
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