Cisco Cisco Packet Data Gateway (PDG) Fehlerbehebungsanleitung
APN Configuration Mode Commands
ip address alloc-method ▀
Cisco ASR 5000 Series Command Line Interface Reference ▄
OL-22947-02
This keyword, when specified with
for IP address allocation configuration, GGSN will prefer
DHCP supplied parameters over values provided by AAA server or by local configuration. This keyword
controls following parameters:
controls following parameters:
primary and secondary Domain Name Server (DNS) address
primary and secondary NetBIOS Name Server (NBNS) address
These values will be sent out in PCO IE of GTP Create PDP Response Message whenever MS Requests for
them in Create PDP Request Message.
them in Create PDP Request Message.
Important:
This keyword is available only with dhcp-proxy ip allocation method as this functionality is
implemented only for GGSN acting as DHCP proxy.
By default, this functionality is disabled. Hence, DNS and NBNS values, if received from DHCP server will
not be considered by the GGSN.
not be considered by the GGSN.
Default: Enabled
Enables support for PDP contexts requesting the use of specific (static) addresses.
Enables support for PDP contexts requesting the use of specific (static) addresses.
Important:
If this option is not enabled, PDP contexts requesting the use of a static address will be rejected with
a cause code of 220 (Unknown PDP address or PDP type).
Usage
Use this command to configure the method by which the APN profile will assign IP addresses to PDP
contexts.
When the PDP context is being established and the APN name is determined, the system will examine the
APN‘s configuration profile. Part of that procedure is determining how to handle IP address allocation.
Figure in Example section displays the process used by the system to determine how the address should be
allocated.
contexts.
When the PDP context is being established and the APN name is determined, the system will examine the
APN‘s configuration profile. Part of that procedure is determining how to handle IP address allocation.
Figure in Example section displays the process used by the system to determine how the address should be
allocated.
Example
The following command configures the APN to dynamically assign an address from a DHCP server and reject PDP
sessions with static IP addresses:
The following command configures the APN to dynamically assign an address from a DHCP server and reject PDP
sessions with static IP addresses:
The following command configures the APN to reject sessions requesting dynamically assigned addresses and only
allow those with static addresses:
allow those with static addresses:
The following figure provides the IP address allocation process: