Step 5. Choose the MAC Address Source from the drop-down list.
• Use Default Address— Uses the defaults MAC address.
• Use This Computer's Address— Uses the MAC address your computer currently has.
• Use this MAC— Allows you to enter a specific MAC Address.
Step 6. Click Save to save the changes.
PPTP Configuration
Step 1. Use the router configuration utility to choose Networking > WAN(Internet) > IPv4
WAN (internet). The IPv4 WAN (internet) page opens.