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Old 4th March 2010
xiphias xiphias is offline
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Default bringing up vlan interfaces


In rc.conf I have the following:

cloned_interfaces="... vlan0 vlan1 vlan2 ..." # I've removed some interfaces from here to avoid confusion
ifconfig_vr0="inet up"
ifconfig_vlan0="vlan 999 vlandev vr0 dhcp"
ifconfig_vlan1="inet netmask vlan 1 vlandev vr0"
ifconfig_vlan2="inet netmask vlan 100 vlandev vr0"
vlan0 get's its ip by dhcp as expected, however vlan1 and vlan2 never get their static IPs assigned. They are created and configured with the correct vlan id/parent device, but the ip address is never assigned.

I have tried this variation:

ifconfig_vlan1="vlan 1 vlandev vr0 inet netmask"
ifconfig_vlan2="vlan 100 vlandev vr0 inet netmask"
but it makes no difference. Can anybody help?

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Old 5th March 2010
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phoenix phoenix is offline
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Posts: 696

Does it work if you comment out the ifconfig_vlan0 line? If so, then there's something in the DHCP code that is overwriting or blocking the configuration of the later vlans.

Note: your ifconfig_vr0 line can be simplified to just "up".

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Old 5th March 2010
J65nko J65nko is offline
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You could take things in own hand by configuring the devices with /etc/start_if.<interface> files.

You can use the normal ifconfig commands in this kind of file(s) just like you would do from the command line.

Several years ago on bsdforums.org I recommended usage of this file. Somebodies interface was DOWN at FreeBSD startup and as a result DHCP never worked. Just creating a /etc/start_if.xx0 with "ifconfig xx0 up" solved the problem.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
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Old 5th March 2010
xiphias xiphias is offline
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Thanks for the suggestions, with a bit more investigation it put me on the right path.

The interfaces mentioned in cloned_interfaces aren't being destroyed when `/etc/rc.d/netif stop` is called. The ip addresses are not assigned correctly only when the device exists before `/etc/rc.d/netif start` is called.

By creating /etc/stop_if.dev scripts for each of the devices in cloned_interfaces and explicitly destroying them there do things work as expected.
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