Cisco CRS User Manual

tunnel ttl (IP)
To configure the time-to-live (TTL) value for the packets entering the tunnel, use the tunnel ttl command in
the interface configuration mode. To return to the default TTL value, use the no form of this command.
tunnel ttl ttl number
no tunnel ttl
Syntax Description
TTL value in numbers. Range is from 1 to 255
ttl number
Command Default
The default value is 255.
Command Modes
Interface configuration
Command History
ModificationRelease
This command was introduced.Release 3.9.0
Usage Guidelines
Task ID
OperationsTask ID
read, writetunnel
read, writeinterface
Examples
The following example shows how to set the encapsulation mode of the tunnel interface:
RP/0/RP0/CPU0:router# configure
RP/0/RP0/CPU0:router(config)# interface tunnel-ip 1
RP/0/RP0/CPU0:router(config-if)# tunnel ttl 100
Cisco IOS XR System Security Command Reference for the Cisco CRS Router, Release 4.1
OL-24740-01 143
IPSec Commands
tunnel ttl (IP)

Cisco CRS Specifications

General

Operating System	Cisco IOS XR
Product Type	Core Router
Form Factor	Modular Chassis
Dimensions	Varies by chassis type
Weight	Varies by chassis type
Architecture	Distributed
Switch Fabric	Multi-stage
Interface Support	Ethernet, SONET/SDH, OTN
Interfaces/Ports	Varies by line card
Port Density	Varies by line card
Routing Protocol	BGP, IS-IS, OSPF, MPLS
Management	CLI, SNMP
Power Supply	Redundant, hot-swappable
Cooling	Redundant, Hot-swappable Fan Trays
Supported Protocols	IPv4, IPv6, MPLS
Management Interfaces	Ethernet, console
Security Features	ACLs