Cisco IOS XR User Manual

Implementing IPSec Network Security on Cisco IOS XR Software
How to Implement General IPSec Configurations for IPSec Networks
SC-116
Cisco IOS XR System Security Configuration Guide
Note This IPSec feature is supported only on the Cisco IPSec VPN SPA.
Configuring the IPSec Antireplay Window: Expanding and Disabling Globally
This task configures the IPSec Antireplay Window: Expanding and Disabling globally.
SUMMARY STEPS
1. configure
2. crypto ipsec security-association replay window-size [N]
3. crypto ipsec security-association replay disable
4. 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 security-association replay window-size
[
N ]
Example:
RP/0/0/CPU0:router(config)# crypto ipsec
security-association replay window-size 256
Sets the size of the SA replay window globally.
• Use the N argument to specify the size of the
window. Values are 64, 128, 256, 512, and
1024. This value becomes the default value.
Note Configure this command or the crypto ipsec
security-association replay disable
command. The two commands are not used
at the same time.

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.