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IMPORTANT
SNS 3.x versions have reached End of Maintenance since July 1st, 2024.
We recommend that you update your SNS firewalls to a version with maintenance to guarantee the protection of your infrastructure.

# Modifying a modem

## PPPoE modem

Use this modem | By selecting this option, you will enable the modem.
Name (mandatory) | Name given to the modem. (See warning in the introduction to the section on Interfaces)
Comments | Allows you to enter comments regarding the modem.
Modem type | Indicates the type of modem chosen in the creation phase.
Color | Color assigned to the modem.

### Authentication

Identifier | Name used for authentication
Password | Password used for authentication. If you click on the key icon to the right of the field, the password will appear in plaintext for 5 seconds.

### Connectivity

The modem is connected to the interface | Indicates the modem’s connection interface.
Query domain name servers and create associated host objects | If this option is selected, the firewall will retrieve DNS servers from the DHCP server it contacts (access provider, for example) to obtain its IP address. Two objects will be dynamically created in the object database upon the selection of this option: Firewall_<interface name>_dns1 and Firewall_<interface name_dns2. They can then be used in the configuration of the DHCP service. So, if the Firewall provides the users on its network with a DHCP service, the users will also benefit from the DNS servers given by the access provider.

### Advanced properties

Service | Type of PPPoE service used. This option allows distinguishing between several ADSL modems. Leave this field empty by default.
Connection | Connection when there is traffic (on demand) establishes a connection with the internet only when a connection request is made by the internal network (this is more economical than in the case of a link that is charged by duration). The Permanent connection keeps the connection to the internet permanently active.

## PPTP Modem

Use this modem | By selecting this option, you will enable the modem.
Name (mandatory) | Name given to the modem. (See warning in the introduction to the section on Interfaces)
Comments | Allows you to enter comments regarding the modem.
Modem type | Indicates the type of modem chosen in the creation phase.
Color | Color assigned to the modem.

### Authentication

Identifier | Name used for authentication
Password | Password used for authentication. If you click on the key icon to the right of the field, the password will appear in plaintext for 5 seconds.

### Connectivity

PPTP address | Internal IP address of the ADSL modem.
Query domain name servers and create associated host objects | If this option is selected, the firewall will retrieve DNS servers from the DHCP server it contacts (access provider, for example) to obtain its IP address. Two objects will be dynamically created in the object database upon the selection of this option: Firewall_<interface name>_dns1 and Firewall_<interface name_dns2. They can then be used in the configuration of the DHCP service. So, if the Firewall provides the users on its network with a DHCP service, the users will also benefit from the DNS servers given by the access provider.

### Advanced properties

Connection | Connection when there is traffic (on demand) establishes a connection with the internet only when a connection request is made by the internal network (this is more economical than in the case of a link that is charged by duration). The Permanent connection keeps the connection to the internet permanently active.

## PPP Modem

Use this modem | By selecting this option, you will enable the modem.
Name (mandatory) | Name given to the modem. (See warning in the introduction to the section on Interfaces)
Comments | Allows you to enter comments regarding the modem.
Modem type | Indicates the type of modem chosen in the creation phase.
Color | Color assigned to the modem.

### Authentication

Identifier | Name used for authentication
Password | Password used for authentication. If you click on the key icon to the right of the field, the password will appear in plaintext for 5 seconds.

### Connectivity

Number to dial | #### Phone number of the access provider.
Query domain name servers and create associated host objects | If this option is selected, the firewall will retrieve DNS servers from the DHCP server it contacts (access provider, for example) to obtain its IP address. Two objects will be dynamically created in the object database upon the selection of this option: Firewall_<interface name>_dns1 and Firewall_<interface name_dns2. They can then be used in the configuration of the DHCP service. So, if the Firewall provides the users on its network with a DHCP service, the users will also benefit from the DNS servers given by the access provider.

### Advanced properties

Initialization strong | String of characters used optionally for initializing the connection.
Connection | Connection when there is traffic (on demand) establishes a connection with the internet only when a connection request is made by the internal network (this is more economical than in the case of a link that is charged by duration). The Permanent connection keeps the connection to the internet permanently active.

## 3G/4G modem

Use this modem | By selecting this option, you will enable the modem.
Name (mandatory) | Name given to the modem. (See warning in the introduction to the section on Interfaces)
Comments | Allows you to enter comments regarding the modem.
Modem type | Indicates the type of modem chosen in the creation phase.
Color | Color assigned to the modem.

### Authentication

Identifier | Name used for authentication
Password | Password used for authentication. If you click on the key icon to the right of the field, the password will appear in plaintext for 5 seconds.

### Connectivity

Access point name | This information varies according to each access provider and is given to you when your 3G/4G subscription begins.
Number to dial | This is the number that the modem needs to dial in order to connect to the access provider's network.
Default IP address of the remote server | Your access provider will give you this address.
PIN code of the SIM card | Information that comes with your SIM card

### Advanced properties

Connection | Connection when there is traffic (on demand) establishes a connection with the internet only when a connection request is made by the internal network (this is more economical than in the case of a link that is charged by duration). The Permanent connection keeps the connection to the internet permanently active.
USB modem | This is the configuration mode selected when the modem was created (Automatic detection or customized profile)