Cisco Cisco Packet Data Gateway (PDG)
LMA Service Configuration Mode Commands
▀ alt-coa-allowed
▄ Command Line Interface Reference, StarOS Release 17
6860
The extension Alternate Care-of-Address Mobility Option defined in RFC 6275 should be used. When using
IPv6 transport and IPv4 transport, Alternate Ipv4 Care of Address Mobility Option defined in RFC 6463
should be used.
Normally, a binding update specifies the desired care-of-address in the source address field of the IPv6
header. However, in some cases such as when the mobile node wishes to indicate a Care-of Address that it
cannot use as a topologically correct source address or when the used security mechanism does not protect
the IPv6 header it is not possible.
The Alternate Care-of-Address option is for this type of situation. This option is valid only in binding update.
The Alternate Care-of Address field contains an address to use as the care-of-address for binding rather than
using the source address of the packet as the care-of-address.
IPv6 transport and IPv4 transport, Alternate Ipv4 Care of Address Mobility Option defined in RFC 6463
should be used.
Normally, a binding update specifies the desired care-of-address in the source address field of the IPv6
header. However, in some cases such as when the mobile node wishes to indicate a Care-of Address that it
cannot use as a topologically correct source address or when the used security mechanism does not protect
the IPv6 header it is not possible.
The Alternate Care-of-Address option is for this type of situation. This option is valid only in binding update.
The Alternate Care-of Address field contains an address to use as the care-of-address for binding rather than
using the source address of the packet as the care-of-address.
Example
The following command disables Alternate Care-of-address support:
no alt-coa-allowed