Users Guide

408 | IP Mobility Dell PowerConnect ArubaOS 5.0 | User Guide
4. Click Apply after setting the parameter.
Configuring mobility functions using CLI
ip mobile foreign-agent {lifetime <seconds> | max-visitors <number> |
registrations {interval <msecs> | retransmits <number>}}
ip mobile home-agent {max-bindings <number>|replay <seconds>}
ip mobile proxy auth-sta-roam-only | block-dhcp-release | dhcp {max-requests
<number>|transaction-hold <seconds>|transaction-timeout <seconds>}| event-threshold
<number> | log-trail | no-service-timeout <seconds> | on-association |re-home |
stale-timeout <seconds> | stand-alone-AP | trail-length <number> |trail-timeout
<seconds>
ip mobile revocation {interval <msec>|retransmits <number>
ip mobile trail {host IP address | host MAC address}
Proxy Mobile IP
The proxy mobile IP module in a mobility-enabled controller detects when a mobile client has moved to a foreign
network and determines the home agent for a roaming client. The proxy mobile IP module performs the
following functions:
Station Trail Max. Entries Specifies the maximum number of entries (client moves) stored in the user mobility trail. The
allowed range of values is 1-100 entries, and the default value is 30 entries.
Mobility Host Entry Hold Time Number of seconds the mobility state is retained after the loss of connectivity. This allows
authentication state and mobility information to be preserved on the home agent controller. The
default is 60 seconds but can be safely increased. Note that in many case a station state is
deleted without waiting for the stale timeout; user delete from management, foreign agent to
foreign agent handoff, etc. (This is different from the no-service-timeout; no-service-timeout
occurs up front while the stale-timeout begins when mobility service is provided but the
connection is disrupted for some reason.)
Mobility Host Entry Lifetime Time, in seconds, after which mobility service expires. If nothing has changed from the previous
state, the client is given another bridge entry but it will have limited connectivity.
Proxy DHCP
Max. BOOTP Messages per
Transaction
Maximum number of BOOTP packets that are allowed to be handled during one DHCP session.
The allowed range of values for tis parameter is 0-65534 packets. The default value is 25.
Max. Time Allowed per DHCP
Transaction
Maximum time allowed for a proxy DHCP session to complete. The allowed range of values for
this parameter is 1-600 seconds. The default value is 60 seconds.
Time to hold DHCP state after
transaction completion
Hold time, in seconds, on proxy DHCP state after completion of DHCP transaction (DHCP ACK)
was forwarded to the client. This option ensures that late BOOTP replies reach the station and
that a retransmitted BOOTP request does not trigger a new proxy DHCP session.
The allowed range of values for this parameter is 1-600 seconds. The default value is 5 seconds.
Revocation
Retransmits Maximum number of times the home agent or foreign agent attempts mobile IP registration/
revocation message exchanges before giving up. The allowed range of values for this parameter
is 0-5 retransmissions. The default value is 3 retransmissions.
Interval Retransmission interval, in milliseconds. The allowed range of values for this parameter is 100-
10000 milliseconds. The default value is 1000 milliseconds.
Table 80 IP Mobility Configuration Parameters
Parameter Description