Cisco 10000-2P2-2DC Software Guide - Page 240
Configuring IP Unnumbered for a Range of Ethernet VLAN Subinterfaces, Configuration Examples for IP
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Configuration Examples for IP Unnumbered on VLANs Chapter 7 Configuring IP Unnumbered on IEEE 802.1Q VLANs Example 7-1 configures IP unnumbered on the Fast Ethernet 1/0.1 subinterface. Example 7-1 Configuring IP Unnumbered on an Ethernet VLAN Subinterface Router(config)# interface fastethernet 1/0.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip unnumbered ethernet3/0 Configuring IP Unnumbered for a Range of Ethernet VLAN Subinterfaces To configure IP unnumber on a range of Ethernet VLAN subinterfaces, enter the following commands beginning in global configuration mode: Step 1 Step 2 Step 3 Command Purpose Router(config)# interface range type Configures a range of subinterfaces and enters subinterface-range number slot/module/port.subinterface - configuration mode. type number slot/module/port.subinterface Router(config-subif-range)# encapsulation Applies a VLAN ID to each subinterface within the range you dot1q vlan-id [native] specify using the interface range command. The VLAN ID that you specify in the vlan-id argument is applied to the first subinterface in the range. Each subsequent interface is assigned a VLAN ID, which is the specified vlan-id plus the subinterface number minus the first subinterface number. For example: VLAN ID + subinterface number - first subinterface number Router(config-subif-range)# ip unnumbered Enables IP processing on a serial interface without assigning an type number explicit IP address to the interface. IP unnumbered is disabled by default. The type and number arguments indicate the type and number of another interface on which the router has an assigned IP address. It cannot be another unnumbered interface. Example 7-2 configures IP unnumbered on the Fast Ethernet subinterfaces 1/0.1 to 1/0.1000. Example 7-2 Configuring IP Unnumbered on a Range of Ethernet VLAN Subinterfaces Router(config)# interface range fastethernet 1/0.1 - fastethernet 1/0.1000 Router(config-subif-range)# ip unnumbered ethernet 3/0 Configuration Examples for IP Unnumbered on VLANs The following example enables IP unnumbered on the Fast Ethernet 0/0.1 VLAN subinterface: ! interface fastethernet0/0.1 encapsulation dot1q 101 ip unnumbered ethernet 0 Cisco 10000 Series Router Software Configuration Guide 7-4 OL-2226-23
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