Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

security vpn l2tp remote-access mtu <mtu>

Specifies the MTU for an L2TP connection.

set security vpn l2tp remote-access mtu mtu
delete security vpn l2tp remote-access mtu
show security vpn l2tp remote-access mtu

If this value is not set, fragmentation is never performed.

mtu
Sets the MTU, in octets, for the interface as a whole, including any logical interfaces configured for it. The range is 128 to 16384.

Configuration mode


security {
       vpn {
          l2tp {
             remote-access {
                mtu mtu            
          } 
        
       } 
    }
}

Use this command to set the maximum transmission unit (MTU) for an L2TP connection.

When forwarding, IPv4 packets larger than the MTU will be fragmented unless the DF bit is set. In that case, the packets will be dropped and an ICMP “Packet too big” message is returned to the sender.

Use the set form of this command to specify the MTU.

Use the delete form of this command to remove MTU value and disable fragmentation.

Use the show form of this command to view MTU configuration.