LTE Foreign PLMN
GUTI Management Database Configuration Mode Commands
The LTE Foreign PLMN GUTI Management Database Configuration
Mode is used to is used to create restrictions on foreign PLMNs,
thereby avoiding DNS request attempts to foreign PLMNs.
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)#
Important: The commands or keywords/variables
that are available are dependent on platform type, product version,
and installed license(s).
end
Exits the current configuration mode and returns to the Exec mode.
Privilege
Security Administrator, Administrator
Syntax
Syntax Description
end
Usage Guidelines
Use this command to return to the Exec mode.
exit
Exits the current mode and returns to the parent configuration mode.
Privilege
Security Administrator, Administrator
Syntax
Syntax Description
exit
Usage Guidelines
Use this command to return to the parent configuration mode.
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.
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
Syntax Description
plmn mcc { mcc_value | any } mnc { mnc_value | any } [ allow | reject ]
plmn mcc mcc_value mnc mnc_value
no
Removes the specified PLMN entry from the Foreign PLMN GUTI management
database.
mcc
mcc_value mnc
mnc_value
mcc {
mcc_value | any }: Specifies the mobile
country code (MCC) portion of the PLMN identifier as an integer from 100
through 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 a 2- or 3-digit integer from
00 through 999. Use the optional
any keyword to specify a wildcard,
representing any MNC.
Note: The
any keyword can only be used for the MNC
value when a specific MCC value is given. For example, the follow 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 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.
If the configured action is Reject, the MME takes the following
actions:
- Attach Requests: 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 Requests: 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.
Examples
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
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