Configuration Chapter 3:
MAC Address Whitelist
If MAC Whitelist validation is enabled for STUNNEL, the MAC Address sent by the client is
validated against the configured MAC Address Whitelist. If the MAC Address is not present
in the Whitelist then the session request is rejected.
The maximum number of MAC Addresses that can be configured at a time in the Whitelist
database is 1000. Only valid MAC addresses are allowed. Duplicate MAC Addresses cannot
be configured. If MAC Blacklist validation is enabled, then MAC Blacklist validation is done
prior to MAC Whitelist validation.
To add or delete MAC addresses from the database, choose “Stunnel” submenu from
“Configuration Menu” and then choose “MAC Whitelist” submenu of “Stunnel.”
MAC addresses can be entered in the following format:
HH:HH:HH:HH:HH:HH[/X], where “H” is a hexadecimal digit from 0 to F.
The optional part /X specifies the number of hex digits from right to left. X can
be between 1 to 12.
Example: 12:34:56:78:90:AB/3 would match all the MAC addresses in the range
of 12:34:56:78:90:00 to 12:34:56:78:9F:FF