Layer 2 Logical Interfaces; Ip Interface Configuration Commands; Configuring Interface Parameter Commands - Avaya G250 Administration Manual

GRE tunnel. A GRE tunnel is a virtual point-to-point link using two routers at two ends of
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an Internet cloud as its endpoints. GRE tunneling encapsulates packets and sends them
over a GRE tunnel. At the end of the GRE tunnel, the encapsulation is removed and the
packet is sent to its destination in the network at the far end of the GRE tunnel. For more
information, see

Layer 2 logical interfaces

VLAN (on the Switching Interface). The G250/G350 switch can have multiple VLANs
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defined within its switching fabric. Both the G250 and the G350 router support up to eight
VLANs that can be configured over their internal switching interface connections.
Serial Interface. The Serial interface is a virtual interface that is created over a portion of
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an E1/T1 or USP port. Serial interfaces support PPP and frame relay encapsulation
protocols. For more information about configuring Serial interfaces for a WAN, see
WAN configuration
Dialer Interface. The Dialer interface is used for the modem dial-backup feature. Refer to
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Modem dial backup
Note:
One or more IP interfaces can be defined over each Serial, FastEthernet,
Note:
switching, and Loopback interface.

IP Interface configuration commands

1. To create an interface, enter interface followed by the type of interface you want to
create. Some types of interfaces require an identifier as a parameter. Other types of
interfaces require the interface's module and port number as a parameter. For example:
interface vlan 1
interface serial 3/1
2. Enter ip address, followed by an IP address and subnet mask, to assign an IP address
to the interface. Use the no form of this command to delete the IP interface.

Configuring interface parameter commands

Use the following commands to configure the interface parameters. For more information about
these commands, see Avaya G250 and Avaya G350 CLI Reference, 03-300437.
Use the ip admin-state command to set the administrative state of the IP interface.
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The default state is up.
Use the ip broadcast-address command to update the interface broadcast address.
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Configuring GRE tunneling
on page 268.
on page 291.
on page 501.
Issue 5 June 2008
Configuring interfaces
Initial
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