Service Manual

Usage Information
A value of 0 copies the inner packet hop limit (ipv6) or time-to-live (ipv4) in the encapsulated packet to the
tunnel header hop limit (ipv6) or time-to-live (ipv4) value.
tunnel destination
Set a destination endpoint for the tunnel.
Syntax
tunnel destination {ip-address | ipv6–address}
To delete a tunnel destination address, use the no tunnel destination {ip-address | ipv6–
address} command.
Parameters
ip-address Enter the destination IPv4 address for the tunnel.
ipv6–address Enter the destination IPv6 address for the tunnel.
Defaults none
Command Modes INTERFACE TUNNEL (conf-if-tu)
Command History
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S4810, S4820T, S6000 and Z9000.
Usage Information
The tunnel interface is inoperable without a valid tunnel destination address for the congured Tunnel mode.
To establish a logical tunnel to the particular destination address, use the destination address of the outer
tunnel header. If you congure a tunnel interface or source address, the tunnel destination must be
compatible.
ip unnumbered
Congure a tunnel interface to operate without a unique IPv4 address and select the interface from which the tunnel borrows its
address.
Syntax
ip unnumbered {interface-type interface-number}
To set the tunnel back to default logical address use the no ip unnumbered command. If the tunnel was
previously operational, the tunnel interface is operationally down unless you also congure the tunnel IPv6
address.
Parameters
interface-type
interface-number
Enter the interface type, followed by a slot number.
Defaults None
Tunneling
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