Cisco Cisco ASR 5000
Crypto Template Configuration Mode Commands
ip mtu ▀
Command Line Interface Reference, StarOS Release 18 ▄
3035
ip mtu
Configures the MTU (Maximum Transmission Unit) of the user payload for IPv4 tunnels in bytes.
Product
ePDG
Privilege
Security Administrator
Syntax
ip mtu size
default ip mtu
default
Sets the IPv4 tunnel MTU to its default size of 1438 bytes.
size
Specifies the IPv4 tunnel MTU in bytes as an integer from 576 through 2048.
Usage
Use this command to increase the MTU size of a packet to accommodate IPSec headers added to a packet and
thus avoid sending an ICMP Fragmentation Needed packet.
thus avoid sending an ICMP Fragmentation Needed packet.
Example
The following command sets the MTU size to 1500:
ip mtu 1500