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Difference between revisions of "OpenBSD"
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Adding information about setting up vlans
(Added OpenBSD page and details of PPPoE) |
(Adding information about setting up vlans) |
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[Todo: add a section of pf firewall usage in a router, for the above] | [Todo: add a section of pf firewall usage in a router, for the above] | ||
== Using VLANs == | |||
Sometimes you want to run network ports in trunk mode and have the networking on them in vlans. This is common on a router as it gives you more more network interfaces than are physically fitted to the router. | |||
The current setup is this: | |||
# cat /etc/hostname.em1 | |||
inet 10.0.1.1 255.255.255.0 | |||
That should be replaced with the singe word "up" | |||
# echo "up" > /etc/hostname.em1 | |||
# cat /etc/hostname.em1 | |||
up | |||
The reason for this is we will no longer use the interface directly, only vlans within it. | |||
Now setup the vlan interface. Our vlan is going to be vlan 40. | |||
# echo "inet 10.0.1.1 255.255.255.0 NONE vlan 40 vlandev em1" > /etc/hostname.vlan40 | |||
# sh /etc/netstart | |||
Then <b>apply changes to /etc/pf.conf</b> to update your firewall to reflect that what was em1 is now vlan40 in firewall terms. | |||
You can add as many more vlans as you need using the same technique. | |||