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Matching vlan id and priority with ebtables

How do you set a vlan priority on a nic in freeBSD?In which vlan am I in?iptables / VLAN: interface namesFilter on bridged vlan interface with iptablesCreating a VLANUsing ethtool filters to balance NIC queuesDifference between ip link add … vlan and bridge vlan add vid…?Linux bond with VLAN questionPacket meta class applied, but captured VLAN priority is wrongLinux bridge SNAT with ebtables

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I am attempting to use ebtables to match a specific VLAN ID (non zero) along with a specific VLAN PCP value.

I tried the following:

ebtables -A FORWARD -p 0x8100 --vlan-id 5 --vlan-prio 3 -j DROP

Ebtables does not complain (as the check has been commented out in ebtables), but the rule reported back using "ebtables -L" only contained the match for VLAN ID.

I did see in the ebtables man page that when vlan-prio is used, the vlan-id must either be zero or not specified.

Can anyone please explain to me as to why this is the case? I have so far not been able to find any references to support that the ID must be zero when the priority bits are used.

Is there anyway to make this possible, aside from creating a separate chain to match the vlan-id and vlan-prio separately?

Thanks in advance.

linux firewall vlan

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edited 4 mins ago

wei

asked 20 mins ago

weiwei

1

New contributor

wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

0

I am attempting to use ebtables to match a specific VLAN ID (non zero) along with a specific VLAN PCP value.

I tried the following:

ebtables -A FORWARD -p 0x8100 --vlan-id 5 --vlan-prio 3 -j DROP

Ebtables does not complain (as the check has been commented out in ebtables), but the rule reported back using "ebtables -L" only contained the match for VLAN ID.

I did see in the ebtables man page that when vlan-prio is used, the vlan-id must either be zero or not specified.

Can anyone please explain to me as to why this is the case? I have so far not been able to find any references to support that the ID must be zero when the priority bits are used.

Is there anyway to make this possible, aside from creating a separate chain to match the vlan-id and vlan-prio separately?

Thanks in advance.

linux firewall vlan

share|improve this question

edited 4 mins ago

wei

asked 20 mins ago

weiwei

1

New contributor

wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I am attempting to use ebtables to match a specific VLAN ID (non zero) along with a specific VLAN PCP value.

I tried the following:

ebtables -A FORWARD -p 0x8100 --vlan-id 5 --vlan-prio 3 -j DROP

Ebtables does not complain (as the check has been commented out in ebtables), but the rule reported back using "ebtables -L" only contained the match for VLAN ID.

I did see in the ebtables man page that when vlan-prio is used, the vlan-id must either be zero or not specified.

Can anyone please explain to me as to why this is the case? I have so far not been able to find any references to support that the ID must be zero when the priority bits are used.

Is there anyway to make this possible, aside from creating a separate chain to match the vlan-id and vlan-prio separately?

Thanks in advance.

linux firewall vlan

share|improve this question

edited 4 mins ago

wei

asked 20 mins ago

weiwei

1

New contributor

wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 4 mins ago

wei

asked 20 mins ago

weiwei

1

New contributor

wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 4 mins ago

wei

asked 20 mins ago

weiwei

1

New contributor

wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 20 mins ago

weiwei

1

New contributor

wei is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 20 mins ago

weiwei

1