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Configuring the LAC to Ignore Address and Port Changes Requested by the LNS
By default, when the LAC receives a request from the LNS in an SCCRP message to change the destination IP address or the UDP port, the LAC accepts the request and makes the change. If this is not the desired behavior, you can use the tx-address-change statement to configure how the LAC handles these change requests.
To configure how the LAC handles change requests for the IP address, the UDP port, or both:
- (Optional) Specify the LAC to ignore all change requests.[edit services l2tp tunnel]user@host# set tx-address-change ignore
- (Optional) Specify the LAC to ignore only change requests
for the IP address.[edit services l2tp tunnel]user@host# set tx-address-change ignore-ip-address
- (Optional) Specify the LAC to ignore only change requests
for the UDP port.[edit services l2tp tunnel]user@host# set tx-address-change ignore-udp-port
- (Optional) Specify the LAC to accept all change requests.[edit services l2tp tunnel]user@host# set tx-address-change accept
Use the show services l2tp summary command to display the current behavior of the LAC:
show services l2tp summaryFailover within a preference level is Disabled Weighted load balancing is Disabled Tunnel authentication challenge is Enabled Calling number avp is Enabled Failover Protocol is Disabled Tx Connect speed method is static Rx speed avp when equal is Disabled Tunnel assignment id format is assignment-id Tunnel Tx Address Change is Ignore IP Address Change Max Retransmissions for Established Tunnel is 7 Max Retransmissions for Not Established Tunnel is 5 Tunnel Idle Timeout is 60 seconds Destruct Timeout is 300 seconds Destination Lockout Timeout is 300 seconds Destinations: 1, Tunnels: 0, Sessions: 0
