D-Link COVR-2600R User Manual page 90

Section 3 - Configuration
Advanced Settings - Address Autoconfiguration Settings
Choose the authentication protocol type: MSCHAPv2, PAP, or CHAP.
Authentication
Protocol: MSCHAPv2 is the default.
MPPE: Select the encryption cipher strength: None, RC4-40, or RC4-128.
RC4-128 is the default.
Click Save when you are done.
D-Link COVR-3902 User Manual
Quick VPN (continued)
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