Configuring an IP address for a VLAN

Assign an IP address to a VLAN to enable routing on the VLAN.

About this task

If you configure the SLA Mon agent address under an IP interface or VLAN, you must remove the SLA Mon address before you can remove the IP address or VLAN.

Procedure

  1. In the navigation pane, expand the Configuration > VLAN folders.
  2. Click VLANs.
  3. In the Basic tab, select the VLAN for which you are configuring an IP address.
  4. Click IP.
  5. Click Insert.
  6. Configure the required parameters.
  7. Click Insert.

IP Address field descriptions

Use the data in the following table to use the IP Address tab.

Name

Description

Interface

Shows the interface to which this entry applies.

Ip Address

Specifies the IP address to associate with the VLAN.

Net Mask

Specifies the subnet mask associated with the IP address of this entry. The value of the mask is an IP address with all the network bits configured to 1 and all the hosts bits configured to 0.

BcastAddrFormat

Shows the IP broadcast address format on this interface.

ReasmMaxSize

Shows the size of the largest IP datagram which this entity can reassemble from incoming IP fragmented datagrams received on this interface.

VlanId

Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1.

BrouterPort

Indicates whether this entry corresponds to a brouter port, as oppose to a routable VLAN.

MacOffset

Specifies the MAC offset value. Routable VLANS are assigned MAC addresses arbitrarily or by offset. Their MAC addresses are:

  • 24 bits: Vendor ID

  • 12 bits: Chassis ID

  • 12 bits: 0xA00-0xFFF

If you enter the MAC offset, the lowest 12 bits are 0xA00 plus the offset. If not, they are arbitrary.

VrfId

Associates the VLAN or brouter port with a VRF. VRF ID 0 is reserved for the administrative VRF.
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