Canon VB-C60 Operation Manual page 26

Setting the Administrator Password, LAN, IPv6, DNS, etc. (Network)
DNS
(1) [Name Server Address 1], [Name Server Address 2]
Enter each name server address you want to register. If only one address is registered, keep
the [Name Server Address 2] field blank.
(2) [Host Name Registration with DDNS]
Select [Enable] and enter the host name. The host name can be registered in the name
server.
You can use up to 63 (single-byte) characters including A to Z, a to z, 0 to 9, "-" (hyphen), _
(underscore) and "." (period).
Tip
For added convenience, register the host name if the camera is to be used by [Auto
(DHCP)] ( P. 1-8). Certain items must be set beforehand for registration in the DNS server.
For the DNS server settings, contact your System Administrator.
If [Name Server Address 1] cannot be used, [Name Server Address 2] will be accessed.
However, [Name Server Address 2] must be already set.
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