LevelOne WBR-6803 - Manual (Page 25)

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leave it blank.
6. Maximum Transmission Unit (MTU): Most ISP offers MTU value to users. The default
MTU value is 0 (auto).
E. PPTP
1. Activate WWAN for Auto-Failover: With this function enabled, when the Ethernet WAN
connection is broken, the device will automatically activate the WWAN connection and
keep you connected to internet with the alternative WWAN broadband service. Meanwhile,
if the device detected that the Ethernet WAN connection is recovered, your broadband
connection will be switched to use the Ethernet WAN service
2. IP Mode: Please check the IP mode your ISP assigned, and select “Static IP Address” or
“Dynamic IP Address”.
3. My IP Address and My Subnet Mask: The private IP address and subnet mask your ISP
assigned to you.
4. Router IP and Server IP Address/Name: The IP address of the PPTP server and
designated Router provided by your ISP.
5. PPTP Account and Password: The account and password your ISP assigned to you. If
you don't want to change the password, keep it blank.