Cellular Gateway

Feature history for Cellular Gateway configuration

This table describes the developments of this feature, by release.

Table 1. Feature History

Feature Name

Release Information

Feature Description

Cellular Gateway Configuration

Cisco vManage Release 20.4.1

Cisco IOS XE Catalyst SD-WAN Release 17.4.1a (on devices)

This feature provides templates for configuring a supported cellular gateway as an IP pass-through device. This release supports the Cisco Cellular Gateway CG418-E and CG522-E.

Cellular Gateway Configuration Using a Configuration Group

Cisco Catalyst SD-WAN Manager Release 20.13.1

Cisco IOS CG Release 17.13.1

Added support for configuring cellular gateways using configuration groups. A new Create Cellular Gateway Group workflow creates a configuration group specifically for cellular gateways.

Cellular Gateways

A cellular gateway is a network device that

  • provides wireless connectivity to a wide area network (WAN),

  • functions as a bridge between cellular networks and enterprise LANs, and

  • supports secure remote management and monitoring.

Secure Communication with Devices through a vmanage-admin Account

SD-WAN Manager communicates with devices, such as Cisco Catalyst Cellular Gateways, using a secure channel—either a datagram transport layer security (DTLS) tunnel or transport layer security (TLS) tunnel. Within this secure channel, it communicates with the devices or controllers using the NETCONF protocol, within an SSH session. It uses an internal-use-only passwordless "vmanage-admin" user account on the device or controller. The vmanage-admin account is created during the initial device setup. Cisco SD-WAN Manager uses this secure channel for monitoring, configuring, and managing devices.

As noted, the vmanage-admin user accounts do not have any password associated with them, so SD-WAN Manager uses a passwordless procedure to log in to the account. To accomplish this, SD-WAN Manager generates an asymmetric encryption public-private key pair. During deployment of a device, SD-WAN Manager copies the public key that it has generated to the device. It sends the public key using a proprietary protocol, within a secure channel—a DTLS or TLS tunnel.

The activity that SD-WAN Manager performs using the vmanage-admin account appears in syslog messages and in the output of certain show commands. The syslog messages are logged with the same level of detail as activities performed through any other user account. The level of syslog detail depends on the syslog configuration of the device.


Note

SD-WAN Manager requires the vmanage-admin account on devices in order to monitor, configure, and manage the devices. Removing, disabling, or altering this account on a device would prevent Cisco SD-WAN Manager from performing these activities, and is not supported.

Supported Cellular Gateway devices

This sections provides information about the supported Cisco Catalyst Cellular Gateway models.

  • CG418-E

  • CG522-E

Configure a Cellular Gateway with a Feature Template in SD-WAN Manager

Configure a cellular gateway device using a feature template.

Use feature templates in SD-WAN Manager to standardize device configurations and enable efficient updates.

For information about using a configuration group, see Configure a Cellular Gateway using a Configuration Group in SD-WAN Manager.

Follow these steps to configure a cellular gateway using a feature template.

Procedure

Step 1

Create a device template for Cisco Cellular Gateway CG418-E devices.

See Configure Devices in the Cisco Catalyst SD-WAN Systems and Interfaces Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x.

After you enter a description for the feature template:

  1. From the SD-WAN Manager menu, choose Configuration > Templates.

  2. Click Device Templates.

    Note

     

    In Cisco vManage Release 20.7.x and earlier releases, Device Templates is titled Device.

  3. From the Create Template drop-down list choose From Feature Template.

  4. From the Device Model drop-down list select the type of device for which you are creating the template.

  5. Choose Cellular Gateway > Cellular Gateway Platform > Create Template. Then configure the Cellular Gateway Platform feature template as shown in this table.

    Table 2. Cellular Gateway Platform Template Parameters

    Parameter Name

    Description

    Basic Configuration Tab

    Time Zone

    Choose the time zone to use for the device. The device uses this time zone for clock synchronization when NTP is configured.

    Management Interface

    Enter the IPv4 address of the management interface for accessing the device.

    Admin-Password

    Enter the admin user password for logging in to the device by using an SSH client or a console port.

    NTP-Servers

    Configure one or more NTP servers to which the device synchronizes its clock.

    Cellular Configuration Tab

    IP-Src-Violation

    Choose v4 only, v6 only, or v4 and v6 to enable the IP source violation feature for the corresponding IP address types. Choose None if you do not want to enable this feature.

    Auto-SIM

    Choose On to enable the auto-SIM feature. When this feature is enabled, the device automatically detects the service provider to which SIMs in the device belong and automatically loads the appropriate firmware for that provider.

    Primary SIM Slot

    Choose the slot that contains the primary SIM card for the device. If the device loses service to this slot, it fails over to the secondary slot.

    Failover-Timer (minutes)

    Enter the number of minutes that the device waits before trying to communicate with the primary SIM slot after the device detects loss of service to this slot.

    Max-Retry

    Enter the number of consecutive unsuccessful attempts by the device to communicate with the primary SIM before failing over to the secondary slot

  6. Choose Cellular Gateway > Cellular Gateway Profile and choose Create Template from the Cellular Gateway Profile drop-down list. Then configure the Cellular Gateway Profile feature template as shown in this table.

    Table 3. Cellular Gateway Profile Template Parameters

    Parameter Name

    Description

    Basic Configuration Tab

    SIM

    Choose a SIM slot and configure the options to create a profile for the SIM in that slot. This profile indicates to the service provider which of its cellular networks the SIM should attach to.

    • Profile ID: Enter a unique ID for the profile

    • Access Point Name: Enter the name of the access point for this profile

    • Packet Data Network Type: Choose the type of network for data services for this profile (IPv4, IPv6, or IPv4v6)

    • Authentication: Choose the authentication method that this profile uses for data, and enter the user name and password for this method in the Profile Username and Profile Password fields that display

    You can configure one profile for each SIM slot in the device.

    Add Profile

    Click to add an access point name (APN) profile that the cellular device uses to attach to a cellular network.

    You can add up to 16 profiles.

    Profile ID

    Enter a unique identifier for the profile.

    Valid values: Integers 1 through 16.

    Access Point Name

    Enter a name to identify the cellular access point.

    Packet Data Network Type

    Choose the packet data network (PDN) type of the cellular network (IPv4, IPv6, or IPv46).

    Authentication

    Choose the authentication method that is used to attach to the cellular access point (none, pap, chap, pap_chap).

    Profile Username

    If you choose an authentication method other than none, enter the user name to use for authentication when attaching to the cellular access point.

    Password

    If you choose an authentication method other than none, enter the password to use for authentication when attaching to the cellular access point.

    Add

    Click to add the profile your are configuring.

    Advanced Configuration Tab

    Attach Profile

    Choose the profile that the device uses to connect to the cellular network.

    Cellular 1/1 Profile

    Choose the profile that the device uses for data connectivity over the cellular network.

Step 2

Attach the device template to the device.

For information, see Attach and Detach a Device Template in the Cisco Catalyst SD-WAN Systems and Interfaces Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x.

Configure a Cellular Gateway using a Configuration Group in SD-WAN Manager

Configure and manage cellular gateways using a configuration group in SD-WAN Manager.

Before you begin

Create a configuration group for Cisco Catalyst Cellular Gateways using Workflows > Create Cellular Gateway Group. On the Configuration Groups page, the resulting configuration group is labelled cellulargateway in the Device Solution column.

For information about creating configuration groups and applying them to devices, see the Using Configuration Groups section of Cisco Catalyst SD-WAN Configuration Groups, Cisco IOS XE Catalyst SD-WAN Release 17x.

Follow these steps to configure a Cellular Gateway using a Configuration Group in SD-WAN Manager.

Procedure

Step 1

From the SD-WAN Manager menu, choose Configuration > Configuration Groups.

Step 2

Click … adjacent to a configuration group for a Cellular Gateway and choose Edit.

  • AAA feature:

    Table 4. Local

    Parameter Name

    Description

    Name

    The account name is preset to admin and cannot be changed.

    Password

    Enter a password for login.
    Table 5. TACACS

    Parameter Name

    Description

    TACACS Configuration

    Enable TACACS configuration.

    Click Add TACACS to add one or more TACACS servers.

    Authentication

    TACACS authentication option:

    • tacacs_ascii: Send authentication information in ASCII format.

    • tacacs_pap: Send authentication information using the password authentication protocol (PAP).

    Timeout

    Timeout for TACACS authentication.

    Range: 1 through 1000 seconds

    TACACS

    IP Address

    IP address of the TACACS server.

    Auth Port

    TCP port number to connect to the TACACS server.

    Default: 49

    Secret Key

    Encryption key for encrypting and decrypting traffic between the cellular gateway and the TACACS server. Configure the same key on the TACACS server.

    Source Interface

    Preconfigured as Cellular1/0, and cannot be changed.

    This is the only interface that the cellular gateway can use for communication with the TACACS server.

    Priority

    Priority level of the TACACS server. Zero is a default priority value and indicates the highest priority. If a cellular gateway is unable to establish a connection with the highest priority server, it attempts to connect to the server of the next highest priority.

    Range: 0 through 7

  • Cellular feature:

    Table 6. Cellular Settings

    Parameter Name

    Description

    Primary Slot

    Choose a SIM slot to designate it as primary.

    Range: 0, 1

    Default: 0

    SIM SLOT 0 Cellular Profile

    Profile Id

    Profile ID.

    You can click Add to add multiple profiles.

    Access Point Name

    Access point name, from your service provider.

    Authentication Method

    Authentication method (none, pap, chap, pap_or_chap) indicated by your service provider.

    Username

    Username for authentication, as indicated by your service provider.

    Password

    Password for authentication, as indicated by your service provider.

    Packet Data Network Type

    Packet data network type (IPv4, IPv6, IPv4v6), as indicated by your service provider.

    Attach Profile

    Choose the attach profile from the defined profiles.

    Data Profile

    Choose the data profile from the defined profiles. You can use the same profile for the attach profile and data profile.

    SIM SLOT 1 Cellular Profile

    See the fields described for SIM slot 0.

  • Logging feature:

    Table 7. Disk

    Parameter Name

    Description

    Disk File Rotate

    Maximum number of log files to store locally.

    The device collects diagnostic monitor log files, which have a maximum size of 20 MB each, until the number of files reaches the rotate value. Then the device deletes the oldest file to make room for a new file.

    Range: 1 through 10

    Disk File Size

    Maximum file size for each log file that the device stores locally. After reaching the maximum size, the device creates a new log file, with a numerically sequenced filename.

    Range: 1 through 20 megabytes
    Table 8. Servers

    Parameter Name

    Description

    Server Name Type

    Choose ipv4 or ipv6, according to the server address type, or choose dns if you enter a server domain name in the Server Name Value field.

    Server Name Value

    IP address or domain name of the server.

    Source IP

    By default, this is the system IP address. You can choose the Device Specific option to specify per device.

    Priority

    Filter the type of log messages saved using one of the following priority options, listed from lowest to highest priority.

    Each priority option configures the device to save log messages of that priority and all higher priorities.

    For example, information is the lowest priority of message, so choosing information includes information log messages and all other log messages too. Choosing error excludes information, notice, and warn log messages, but includes error messages and all other log messages of higher priority (critical, alert, and emergency).

    From lowest to highest priority, the options are the following:

    • information

    • notice

    • warn

    • error

    • critical

    • alert

    • emergency

  • Network Protocol feature:

    Table 9. Basic Configuration

    Parameter Name

    Description

    Passthrough

    The cellular gateway operates in one of two modes: IP passthrough and NAT.

    In IP passthrough mode, the cellular gateway passes the public IP address assigned by the internet service provider (ISP) to a downstream device attached to the cellular gateway.

    Disabling the Passthrough option enables NAT, which gives the devices that are connected to the cellular gateway access to a DHCP server and to the local gateway.

    Note

     

    Enabling passthrough mode disables and hides the other fields in the Basic Configuration section.

    DHCP Pool

    DHCP Pool

    Enable a DHCP pool for NAT.

    DHCP Network Pool

    IP address pool, in classless interdomain routing (CIDR) format.

    Lease Days

    Days for DHCP lease time

    Range: 0 to 365

    Lease Hours

    Hours for DHCP lease time.

    Range: 0 to 23

    Lease Minutes

    Minutes for DHCP lease time.

    Range: 0 to 59

    PAT Configuration

    PAT Configuration

    Enable port address translation (PAT).

    Add PAT Config

    Click this to add one or more PAT configurations.

    Description

    Description of the PAT configuration.

    Protocol

    Choose TCP or UDP.

    LocalAddress

    IPv4 format address.

    LocalPort

    Port number.

    Range: 0 to 65535

    InterfaceName

    Preconfigured as Cellular1/0, which is the WAN interface for the cellular gateway.

    GlobalPort

    Global port number.

    Range: 1 to 65535
    Table 10. NTP Servers

    Parameter Name

    Description

    NTP

    To configure a network time protocol (NTP) server, enter an IPv4 address or a DNS name.

    Maximum number of NTP servers: 4

Step 3

(Optional) To add CLI configuration commands, follow these steps:

  1. Open the CLI Add-on Profile.

  2. Click Add Feature.

  3. In the Type dropdown list, choose Config.

  4. Enter a name for the feature.

  5. Click Save.

Note

 

CLI configuration commands in the CLI Add-on Profile override any configuration done using the Global Profile.

What to do next

Also see Deploy a configuration group.