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 }
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
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