plmn
Configures a foreign Public Land Mobile Network (PLMN) entry in the Foreign PLMN GUTI management database. This optional configuration is used to control the acceptance or immediate reject of Attach Requests and TAU Requests containing a GUTI from this PLMN.
Product
MME
Privilege
Administrator
Mode
Exec > Global Configuration > LTE Policy Configuration > Foreign PLMN GUTI Management Database
configure > lte-policy > foreign-plmn-guti-mgmt-db
Entering the above command sequence results in the following prompt:
[local]host_name(foreign-plmn-guti-mgmt-db)#
Syntax
plmn mcc { mcc_value | any } mnc { mnc_value | any } { allow | reject }
no plmn mcc { mcc_value | any } mnc { mnc_value | any }
no
Removes the specified PLMN entry from the Foreign PLMN GUTI management database.
mcc { mcc_value | any }
Specifies the mobile country code (MCC) portion of the PLMN identifier. mcc_value is an integer from 100 to 999. Use the optional any keyword to specify a wildcard, representing any MCC.
mnc { mnc_value | any }
Specifies the mobile network code (MNC) portion of the PLMN identifier. mnc_value is a 2- or 3-digit integer from 00 to 999. Use the optional any keyword to specify a wildcard, representing any MNC.
![]() Important |
The any keyword can only be used for the MNC value when a specific MCC value is given. For example, the following command is not allowed: plmn mcc any mnc 456 allow |
allow
Configures the MME to allow foreign GUTIs from this PLMN.
reject
Configures the MME to reject foreign GUTIs from this PLMN.
Usage Guidelines
Use this command to create and configure a foreign Public Land Mobile Network (PLMN) entry in the Foreign PLMN GUTI management database. This optional configuration is used to control the acceptance or immediate reject of Attach Requests and TAU Requests containing a GUTI from this PLMN.
If the configured action is Reject, the MME takes the following actions:
- Attach Request: A NAS Identity Request is sent to the UE to determine its IMSI and no DNS lookup is performed to find a peer MME or SGSN.
- TAU Request: A TAU Reject message is sent immediately with cause code 9 (UE Identity cannot be derived by the network) and no DNS lookup is performed to find a peer MME or SGSN.
If the configured action is Allow, the MME continues processing the Attach Request or TAU Request and a DNS request may be made.
A maximum of 16 foreign PLMN entries can be added to a Foreign PLMN GUTI management database.
Example
The following command creates a PLMN entry in the foreign PLMN GUTI management database. The entry specifies that GUTIs from PLMNs with the MCC of 123 and any MNC be rejected.plmn mcc 123 mnc any reject