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Figure 4-5 WAN – Dynamic IP
This page displays the WAN IP parameters assigned dynamically by your ISP, including IP
address, Subnet Mask, Default Gateway, etc. Click Renew to renew the IP parameters from your
ISP. Click Release to release the IP parameters.
¾ MTU Size - The normal MTU (Maximum Transmission Unit) value for most Ethernet networks
is 1500 Bytes. For some ISPs you need to reduce the MTU. But this is rarely required, and
should not be done unless you are sure it is necessary for your ISP connection.
If your ISP gives you one or two DNS addresses, select Use These DNS Servers and enter the
primary and secondary addresses into the correct fields. Otherwise, the DNS servers will be
assigned dynamically from your ISP.
)
Note:
If you get address and find error when you go to a Web site, it is likely that your DNS servers are
set up improperly. You should contact your ISP to get DNS server addresses.
¾ Get IP with Unicast DHCP - A few ISPs' DHCP servers do not support the broadcast
applications. If you cannot get the IP Address normally, you can choose this option. (This is
rarely required.)
2. If you choose Static IP, you should have fixed IP Parameters specified by your ISP. The
Static IP settings page will appear as shown in Figure 4-6.