ZyXEL Communications NBG7815 User Manual page 93

Table 28 Network > WAN > Internet Connection: PPTP Encapsulation (continued)
LABEL DESCRIPTION
PPTP Encryption Type Use the drop-down list box to select the type of Microsoft Point-to-Point Encryption (MPPE).
Options are:
Auto – This ISP account adjusts the encryption type automatically.
None – This ISP account does not use MPPE.
40 – This ISP account uses 40-bit MPPE.
128 – This ISP account uses 128-bit MMPE.
MTU Size Enter the MTU (Maximum Transmission Unit) size for each packet. If a larger packet arrives,
the NBG7815 divides it into smaller fragments.
PPTP Server IP Enter the IP address of the PPTP server.
Address
Auto Connect Select this radio button if the PPTP server did not assign you a fixed IP address.
Static IP Select this radio button if the PPTP server assigned an IP address for your Internet
connection.
IP Address Enter the IP address provided by the PPTP server.
IP Subnet Mask Enter the IP subnet mask in this field.
Gateway Enter the gateway IP address in this field.
DNS Server
First DNS Server Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP
address in the field to the right.
Second DNS Server
Select None if you do not want to configure DNS servers. If you do not configure a DNS
Third DNS Server
server, you must know the IP address of a computer in order to access it.
WAN IP Address Assignment
Obtained from ISP Select this option If your ISP did not assign you a fixed IP address. This is the default selection.
Fixed IP Select this option If the ISP assigned a fixed IP address.
IP Address Enter your WAN IP address in this field if you selected Fixed IP.
WAN MAC Address
Once the WAN MAC address is successfully configured, the address will be copied to the configuration file. It will
not change unless you change the setting or upload a different configuration file.
Factory Default Select this option to have the WAN interface use the factory assigned default MAC address.
By default, the NBG7815 uses the factory assigned MAC address to identify itself.
Clone My Select this option to have the WAN interface use a different MAC address by cloning the
Computer's MAC MAC address of another device or computer. Enter the IP address of the device or
Address computer whose MAC address you are cloning.
Set WAN MAC Select this option to have the WAN interface use a manually specified MAC address. Enter
Address the MAC address in the fields.
LAN & WAN Subnet Conflict
Automatically Select this option to have the NBG7815 change its LAN IP address to 10.0.0.1 or
change the LAN IP 192.168.123.1 accordingly when the NBG7815 gets a dynamic WAN IP address in the same
subnet as the LAN IP address. See
The NAT, DHCP server and firewall functions on the NBG7815 are still available in this mode.
APPLY Click APPLY to save your changes back to the NBG7815.
CANCEL Click CANCEL to begin configuring this screen afresh.
Chapter 9 WAN
Section 9.3.1 on page 83
NBG7815 User's Guide
93
for more information.