Configuring Dynamic Dns - Symantec 460R - Gateway Security Administrator's Manual

40 Configuring a connection to the outside network

Configuring dynamic DNS

3
Note: To reset the MTU size, click Restore Defaults. This also resets the echo request information and the
DHCP Idle Renew settings to their default values.
Configuring dynamic DNS
Symantec Gateway Security 400 Series can use a dynamic DNS service to map dynamic IP addresses to a
domain name to which users can connect.
If you receive your IP address dynamically from your ISP, dynamic DNS services let you use your own
domain name (mysite.com, for example) or their domain name and your subdomain to connect to your
services, such as a VPN gateway, Web site, or FTP. For example, if you set up a virtual Web server and your
ISP assigns you a different IP address each time you connect the server, your users can always access
www.mysite.com.
The appliances support two types of dynamic DNS services: standard and TZO. You can configure either
service by specifying account information, or you can disable dynamic DNS completely.
See the Symantec Gateway Security 400 Series Release Notes for the list of supported services.
When you create an account with TZO, your ISP sends you the following information to log in and use your
account: key (password), email (user name), and domain. Gather this information before configuring the
appliance to use TZO. For more information about TZO dynamic DNS, go to http://www.tzo.com.
To use standard service DNS, gather the following information:
To configure dynamic DNS
For models 420 and 440, you can configure the WAN port to use dynamic DNS. For models 460 and 460R,
you can configure WAN1, WAN2, or both ports to use dynamic DNS.
See
See
To configure TZO dynamic DNS
1
2
3
4
5
Click Save.
Account information
User name (which may be different from the account name) and password for the dynamic DNS
account.
Server
IP address or resolvable name of the dynamic DNS server. For example, members.dyndns.org.
"Dynamic DNS tab field descriptions"
"Main Setup tab field descriptions"
In the SGMI, in the left pane, click WAN/ISP.
On the Dynamic DNS tab, under Service Type, click TZO.
Do one of the following:
For models 420 and 440, skip to step 4.
For models 460 and 460R, in the WAN Port drop-down list, select the WAN port for which you are
configuring TZO.
Under TZO Dynamic DNS Service, do the following:
In the Key text box, type the key that TZO sent when the account was created.
In the Email text box, type the email address you specified when you created the TZO account.
In the Domain text box, type the domain name that TZO handles. For example,
marketing.mysite.com.
Click Save.
on page 133.
on page 128.