Concept Guide

470| interface tunnel Dell Networking W-Series ArubaOS 6.5.x| Reference Guide
Parameter Description Range Default
routable IP address.
Enter the following values:
l address: The interface IPaddress of the
Layer-3 tunnel.
l <ipaddr>: An IPv4 address.
NOTE: The IP address should not be part of
any subnet in your network, nor does it have to
be routable in your network. It is used as a
gateway for routing your private subnets (i.e.,
non-routable VLANs) within the GREtunnel.
l internal: IP address allocated from the
Remote-Node pool.
l <ipmask>: IPaddress allocated from the
Remote-Node pool.
l ospf: OSPFinterface command.
ipv6
IPv6 address of the Layer-3 GRE tunnel.
NOTE: This IP address can be configured only
for a Layer-3 GREtunnel (refer to the "mode
gre" parameter below for details).
- -
mode gre
This parameter a) specifies the tunnel
encapsulation method as GRE and b) allows
you to specify whether it is a Layer-2 or Layer-
3 GRE tunnel.
l <16-bit protocol number>: The 16-bit
protocol number uniquely identifies a GRE
tunnel. The number format is numeric. The
controllers at both endpoints of the tunnel
must be configured with the same protocol
number. The protocol number does not
necessarily have to match the protocol
number of the encapsulated frame. The
controller encapsulates the entire frame,
including the Layer-2 header.
l ip: Specifies an IPv4 Layer-3 GRE tunnel.
The protocol number is set to 0x0800 and
is not configurable. Traffic is redirected into
the tunnel using a static route or a session
ACL policy. The controller encapsulates the
Layer-3 packet only.
l ipv6: Specifies an IPv6 Layer-3 GRE tunnel.
The protocol number is set to 0x86DD and
is not configurable. Traffic is redirected into
the tunnel using a static route or a session
ACL policy. The controller encapsulates the
Layer-3 packet only.
mtu
MTU size for the interface.
1024 - 9216
Enabled
IPv4: 1100