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• Configuring a VLAN Dynamic Profile for Creating Single-Tag VLANs Using Any TPID Values  

• Related Topics
• Configuring a Basic Dynamic Profile
• Dynamic 802.1Q VLAN Overview
• Dynamic Variables Overview
• Configuring Frames with Particular TPIDs to Be Processed as Tagged Frames

Configuring a VLAN Dynamic Profile for Creating Single-Tag VLANs Using Any TPID Values

You can configure a VLAN dynamic profile to create single-tag VLANs that accept any TPID values by configuring the vlan-tags statement and the $junos-vlan-id variable.

Note: For procedures to configure a VLAN dynamic profile for creating single-tag VLANs that use only standard TPID values (a TPID value of 0x8100), see Configuring a VLAN Dynamic Profile for Creating Single-Tag VLANs Using Standard TPID Values.

Before you begin:

• Configure the dynamic profile.

  See Configuring a Basic Dynamic Profile.

To configure a dynamic VLAN profile:

1. Ensure that the VLAN dynamic profile uses the $junos-interface-ifd-name variable for the dynamic interface and the $junos-interface-unit variable for the interface unit.
2. (Optional) To support dynamic demux interfaces, enable them using the demux-source statement.

   [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit"]

   user@host# set demux-source inet

3. (Optional) To configure the router to respond to any ARP request, specify the proxy-arp statement.

   [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit"]

   user@host# set proxy-arp

4. Specify that you want to use dynamic VLAN IDs in the dynamic profile.

   [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit"]

   user@host# set vlan-tags outer $junos-vlan-id

   The variable is dynamically replaced with both the TPID value and a VLAN ID within the VLAN range specified at the [interfaces] hierarchy level.

5. Define the unit family.
   1. Specify the family type.

      [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit"]

      user@host# set family inet

   2. (Optional) Enable IP and MAC address validation for dynamic IP demux interfaces in a dynamic profile.

      [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit" family inet]

      user@host# set mac-validate strict

   3. Specify the unnumbered address.

      [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit" family inet]

      user@host# set unnumbered-address lo.0

   4. Specify the preferred source address.

      [edit dynamic-profiles VLAN-PROF1 interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit" family inet]

      user@host# set preferred-source-address 192.0.16.1