Cisco Cisco Packet Data Interworking Function (PDIF) Guía Para Resolver Problemas
FA Service Configuration Mode Commands
▀ reverse-tunnel
▄ Cisco ASR 5000 Series Command Line Interface Reference
OL-22948-01
reverse-tunnel
Enables the use of reverse tunneling for a Mobile IP sessions when requested by the mobile node.
Product
PDSN, ASN GW, GGSN
Privilege
Security Administrator, Administrator
Syntax
Indicates the reverse tunnel option is to be disabled. When omitted, the reverse tunnel option is enabled.
Usage
Reverse tunneling involves tunneling datagrams originated by the mobile node to the HA via the FA service.
When an MN arrives at a foreign network, it listens for agent advertisements and selects an FA that supports
reverse tunnels. The MN requests this service when it registers through the selected FA. At this time, the MN
may also specify a delivery technique such as Direct or the Encapsulating Delivery Style.
The advantages of using reverse-tunneling:
When an MN arrives at a foreign network, it listens for agent advertisements and selects an FA that supports
reverse tunnels. The MN requests this service when it registers through the selected FA. At this time, the MN
may also specify a delivery technique such as Direct or the Encapsulating Delivery Style.
The advantages of using reverse-tunneling:
All datagrams from the mobile node seem to originate from its home network
The FA can keep track of the HA that the mobile node is registered to and tunnel all datagrams from the
mobile node to its HA
Use the
option of this command to disable reverse tunneling. If reverse tunneling is disabled, and the
mobile node does not request it, then triangular routing is used.
The system is shipped from the factory with the reverse tunnel enabled.
The system is shipped from the factory with the reverse tunnel enabled.
Important:
If reverse tunneling is disabled on the system and a mobile node requests it, the call will be rejected
with a reply code of 74H (reverse-tunneling unavailable).
Example
The following command disables reverse-tunneling support for the FA service:
The following command disables reverse-tunneling support for the FA service: