Zoom 4420-A - Manual (Page 43)

Chapter 5. TCP/IP Settings 43
Request MPPE
Encryption Select this option to use Microsoft Point-to-
P
oint Encryption, technology developed by
Microsoft for encrypting communication over a
VPN tunnel.
Attain DNS
Automatically If you select this option, your ISP provider
assigns a Domain Name Server (DNS). A DNS
maps the user-friendly domain names that you
type into your web browser (for example,
www.zoom.com) to the numerical IP addresses
that are used for Internet routing.
When you type a domain name into your
browser, your PC sends a request to a DNS
server to find the equivalent numerical
address.
Set DNS Manually If you select this option, enter the IP
address(es) of Domain Name Server(s) in the
following text boxes.
DNS 1: The IP Address of your primary
Domain Name Server.
DNS 2: The address of an alternate DNS
server to use in case DNS Server #1 is out of
service or heavily congested.
DNS 3: The address of an alternate DNS
server to use in case DNS Servers #1 and #2
are out of service or heavily congested.
Clone MAC
Address (Usually optional) Enter the MAC address of a
device in the LAN network if you want to use
that address for Internet access instead of the
AP+4’s MAC address.
Enable uPNP Select this check box to enable Universal Plug
and Play, which lets devices connect
automatically to one another over the LAN.
Enable Ping
Access on WAN Select this check box to allow someone to ping
the AP+4 over the Internet . This is useful for
troubleshooting – it can allow a technician to
remotely ping the AP+4 to see if it is working.
In normal use, this option should be disabled
for security reasons.