Cisco IOS XR User Manual

Implementing IPSec Network Security on Cisco IOS XR Software
How to Implement General IPSec Configurations for IPSec Networks
SC-126
Cisco IOS XR System Security Configuration Guide
3. end
or
commit
DETAILED STEPS
Command or Action Purpose
Step 1
configure
Example:
RP/0/0/CPU0:router# configure
Enters global configuration mode.
Step 2
crypto ipsec pre-fragmentation disable
Example:
RP/0/0/CPU0:router(config)# crypto ipsec
pre-fragmentation disable
or
Example:
RP/0/0/CPU0:router(config)# interface service-gre
500
RP/0/0/CPU0:router(config-if)# crypto ipsec
pre-fragmentation disable
Specifies the handling of fragmentation for the
near-MTU-sized packets.
• Use the disable keyword to disable the
fragmentation of large packets before IPSec
encapsulation.
You can use the crypto ipsec pre-fragmentation
command in global configuration mode or
service-gre interface configuration mode.
Step 3
end
or
commit
Example:
RP/0/0/CPU0:router(config)# end
or
RP/0/0/CPU0:router(config)# commit
Saves configuration changes.
• When you issue the end command, the system
prompts you to commit changes:
Uncommitted changes found, commit them
before exiting(yes/no/cancel)?
[cancel]:
– Entering yes saves configuration changes to
the running configuration file, exits the
configuration session, and returns the
router to EXEC mode.
– Entering no exits the configuration session
and returns the router to EXEC mode
without committing the configuration
changes.
– Entering cancel leaves the router in the
current configuration session without
exiting or committing the configuration
changes.
• Use the commit command to save the
configuration changes to the running
configuration file and remain within the
configuration session.

Cisco IOS XR Specifications

General

Operating System	Cisco IOS XR
Architecture	Microkernel
High Availability	Yes
Type	Network operating system
Developed by	Cisco Systems
License	Proprietary
Programming Language	C, C++
Kernel	QNX
Supported Platforms	Cisco ASR9000, NCS series
Security Features	Role-Based Access Control (RBAC), Secure Boot, Encryption
Management Interface	CLI, SNMP, NETCONF, RESTCONF
Release Date	2004
Target Devices	High-end core routers, service provider edge routers, data center interconnect (DCI) routers
Supported Hardware	Cisco routers and switches
Networking Protocols	BGP, OSPF, IS-IS, MPLS
Virtualization Support	Virtualization-ready, supports network function virtualization (NFV) and containerization technologies.