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Internet Features
It is more convenient if you are using a Fixed IP Address from your ISP, rather than Dynamic.
However, you can use the Dynamic DNS feature, described in the following section, to allow
users to connect to your Virtual Servers using a URL, rather than an IP Address.
Internet Options
This screen allows advanced users to enter or change a number of settings. For normal opera-
tion, there is no need to use this screen or change any settings.
Figure 35: Options Screen
Data - Options Screen
Backup DNS
IP Address
Enter the IP Address of the DNS (Domain Name Servers) here. These
DNS will be used only if the primary DNS is unavailable.
MTU
MTU size
MTU (Maximum Transmission Unit) value should only be changed if
advised to do so by Technical Support.
• Enter a value between 1 and 1500.
• This device will still auto-negotiate with the remote server, to set
the MTU size. The smaller of the 2 values (auto-negotiated, or en-
tered here) will be used.
• For direct connections (not PPPoE or PPTP), the MTU used is
always 1500.
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