Viper SC+™ IP Router for Licensed Spectrum PN 001-5008-000 Rev. C
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VPN Password
This field is used to change the password used to gain access to VPN configuration settings. The password must
contain at least eight (8) and no more than fifteen (15) characters using a combination of three out of the following
four types of characters.
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Uppercase letters
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Lowercase letters
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Numbers
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Special characters
Notes:
The list of supported special characters is displayed after entering an invalid password.
The VPN service cannot be enabled if this field is not set.
Key Strength
The number of bits used by all VPN keys. The value can be one of the following.
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128 bits – 16 text characters or 32 hexadecimal digits
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192 bits – 24 text characters or 48 hexadecimal digits
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256 bits – 32 text characters or 64 hexadecimal digits
Hexadecimal digits include 0 through 9, and a through f, or A through F.
Master Key
A key that must be the same for a VPN server and all of its clients. This key can be entered as a text string (weaker)
or as a binary number (stronger).
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A text string may contain any character. For example, “a 16-byte string” (quotes are optional).
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A numeric value should start with 0x (zero-x) to permit hexadecimal digits. For example,
0x00112233445566778899aabbccddeeff is a 16-byte (128 bit) value.
A numeric value provides a stronger key since each string character contains only 7 bits, but two hexadecimal
digits contain 8 bits.
Notes:
The length of the key must match the Key Strength setting in bytes (strength in bytes divided by 8).
The VPN service cannot be enabled if this field is not set.
Clear VPN Password and Master Key
— Clears the VPN password used to gain access to VPN configuration settings.
Also clears the VPN password used t gain access to VPN configuration settings. Also clears the VPN Master Key.
Note:
To reset just the Master Key, set the Key Strength to a different value.
VPN Configuration – General Settings
Set Server/Client Defaults
— Sets most VPN settings to appropriate values for either server or client mode of
operation. Server mode should be selected on devices connected by Ethernet to the backhaul network. Client mode
should be selected on all other devices.
Notes:
The VPN Password, Key Strength, and Master Key settings are not affected.
It is recommended to select one of these buttons as the first step in configuring the VPN service.
Automatic Start
The VPN service can be set to start automatically at startup (or not to).
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Enabled — Start the VPN service at startup.
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Disabled — Do not start the VPN service automatically at startup.
The default setting is Enabled.
