Proxy Mobile IPv6 (PMIPv6) is a network-based mobility management protocol that supports a mobile node by acting as the proxy for the mobile node in any IP mobility-related signaling. The mobility entities in the network track the movements of the mobile node and initiate the mobility signaling and set up the required routing state.
The main functional entities are the Local Mobility Anchor (LMA) and Mobile Access Gateway (MAG). The LMA maintains the reachability state of the mobile node and is the topological anchor point for the IP address of the mobile node. The MAG performs the mobility management on behalf of a mobile node. The MAG resides on the access link where the mobile node is anchored. The controller implements the MAG functionality.
In the Cisco 5500 Series, Cisco WiSM2, and Cisco 8500 Series controllers, PMIPv6 Mobility Access Gateway (MAG) support for integration with Local Mobility Anchor (LMA) such as Cisco ASR 5000 Series in cellular data networks.
Guidelines and Limitations
IPv6/dual stack clients are supported. IPv6 clients are not supported. IPv6 addresses for the client are not learnt if the WLAN is marked for PMIPv6.
PMIPv6 is not supported on local switching WLANs on FlexConnect APs.
Roaming between controllers is supported only on PMIPv6-enabled WLANs.
Configuring Proxy Mobile IPv6 (GUI)
Step 1
Choose Controller > PMIPv6 > General to open the PMIPv6 General page.
Step 2
Enter the values for the following parameters:
Maximum Bindings Allowed—Maximum number of binding updates that the controller can send to
the MAG. The valid range is between 0 to 40000.
Binding Lifetime—Lifetime of the binding entries in the controller. The valid range is between 10 to 65535 seconds. The default value is 3600.
The binding
lifetime should be a multiple of 4 seconds.
Binding Refresh Time—Refresh time of the binding entries in the controller. The valid range is between 4 to 65535 seconds. The default value is 300
seconds.
The binding
refresh time should be a multiple of 4 seconds.
Binding Initial Retry Timeout—Initial timeout between the proxy binding updates (PBUs) when the
controller does not receive the proxy binding acknowledgments (PBAs).
The valid range is between 100 to 65535 seconds. The default value is 1000
seconds.
Binding Maximum Retry Timeout—Maximum timeout between the proxy binding updates (PBUs) when the
controller does not receive the proxy binding acknowledgments
(PBAs). The valid range is between 100 to 65535 seconds. The default value is 32000
seconds.
Replay Protection Timestamp—Maximum amount of time difference between the timestamp in the
received proxy binding acknowledgment and the current time of the
day.
The valid range is between 1 to 255 milliseconds. The default value is 7
milliseconds.
Minimum BRI Retransmit Timeout—Minimum amount of time that the controller waits before
retransmitting the BRI message. The valid range is between 500 to 65535 seconds. The default value is 1000 seconds.
Maximum BRI Retransmit Timeout—Maximum amount of time that the controller waits before
retransmitting the Binding Revocation Indication (BRI) message.
The valid range is between 500 to 65535 seconds. The default value is 2000
seconds.
BRI Retries—Maximum number of times that the controller retransmits the BRI
message before receiving the Binding Revocation Acknowledgment
(BRA) message.
The valid range is between 1 to 10. The default value is 1.
Step 3
Click Apply to commit your changes.
To clear your configuration, click Clear Domain.
Step 4
To create the LMA, follow these steps:
Choose Controller > PMIPv6 > LMA and click New.
Enter the values for the following parameters:
Member Name—Name of the LMA connected to the controller.
Member IP Address—IP address of the LMA connected to the controller.
Click Apply to commit your changes.
Step 5
To create a PMIPv6 profile, follow these steps:
Choose Controller > PMIPv6 > Profiles and click New.
On the PMIPv6 Profile > New page, enter the values for the following parameters:
Profile Name—Name of the profile.
Network Access Identifier—Name of the Network Access Identifier (NAI) associated with the
profile.
LMA Name—Name of the LMA to which the profile is associated.
Access Point Node—Name of the access point node connected to the controller.
Click Apply to commit your changes.
Step 6
On the PMIPv6 Profile > New page, enter the values for the following parameters:
Profile Name—Name of the profile.
Network Access Identifier—Name of the Network Access Identifier (NAI) associated with the
profile.
LMA Name—Name of the LMA to which the profile is associated.
Access Point Node—Name of the access point node connected to the controller.
Step 7
To configure PMIPv6 parameters for a WLAN, follow these steps:
Choose WLANs > WLAN ID to open the WLANs > Edit page.
Click the Advanced tab.
Under PMIP from the PMIP Mobility Type drop-down list, choose the mobility type from the following options:
None—Configures the WLAN with Simple IP
PMIPv6—Configures the WLAN with only PMIPv6
From the PMIP Profile drop-down list, choose the PMIP profile for the WLAN.
In the PMIP Realm box, enter the default realm for the WLAN.
Click Apply to commit your changes.
Step 8
Click Save Configuration to save your changes.
Configuring Proxy Mobile IPv6 (CLI)
Step 1
To configure MAG, use these commands:
To configure maximum binding update entries allowed, enter this command:
config pmipv6 mag binding maximumunits
To configure the binding entry lifetime, enter this command:
config pmipv6 mag lifetimeunits
To configure the binding refresh interval, enter this command:
config pmipv6 mag refresh-timeunits
To configure the initial timeout between PBUs if PBA does not arrive, enter this command:
config pmipv6 mag init-retx-timeunits
To configure the maximum initial timeout between PBUs if PBA does not arrive, enter this command:
config pmipv6 mag max-retx-timeunits
To configure the replay protection mechanism, enter this command:
config pmipv6 mag replay-protection {timestamp windowunits | sequence-no | mobile-node-timestamp}
To configure the minimum or maximum amount of time in seconds that the MAG should wait before it retransmits the binding revocation indication (BRI) message, enter this command:
config pmipv6 mag bri delay {min | max} units
To configure the maximum number of times the MAG should retransmit the BRI message before it receives the binding revocation acknowledgment (BRA) message, enter this command:
config pmipv6 mag bri retriesunits
To configure the list of LMAs for the MAG, enter this command:
config pmipv6 mag lmalma-nameipv4-addressip-address
Step 2
To configure a PMIPv6 domain name, enter this command:
config pmipv6 domaindomain-name
Note
This command also enables the MAG functionality on the controller.
Step 3
To add a profile to a PMIPv6 domain, enter this command:
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