PC Programming Manual References27.2.4 Router Configuration—Setup—[1-2-4] WAN—Dynamic DNS8.6.5 DNS ClientDescriptionWhen a device on the LAN requests a domain name resolution, the DNS client queries an outside DNS serverand then forwards the results to the requesting device. With this feature, devices on the LAN can convertdomain names into IP addresses, and determine what domain name is associated with an IP address.Once a domain name has been resolved, this information is temporarily stored in a local cache. If a query ismade for the same information, the PBX responds with the information stored in its cache.KX-NS1000Built- inRouterSwitchingHubINTERNETPCIP-PTDNS ServerDNS ServerConditions• A primary and secondary DNS server can be specified in the WAN-side network settings. The PBX willquery the primary DNS server first. If that query fails, the PBX queries the secondary server.• For details about what values to use for the DNS client settings, consult the network administrator.• When the built-in router is enabled, it is not possible to access a DNS server at a different site over a VLAN.Since communication over a VPN will not be possible, do not set a destination IP address in the VPN forthe following settings:– 27.2.1 Router Configuration—Setup—[1-2-1] WAN—Connection Settings→ Preferred DNS IP Address→ Alternative DNS IP Address– 28.1 Network Service—[1] IP Address/Ports→ DNS Setting—Preferred DNS IP Address→ DNS Setting—Alternative DNS IP AddressEither set up a DNS server at each site, or specify a DNS server on the WAN side.PC Programming Manual References9.11 PBX Configuration—[1-1] Configuration—Slot—V-SIPGW—Port Property—Main— SIP Server Name9.11 PBX Configuration—[1-1] Configuration—Slot—V-SIPGW—Port Property—Register — Registrar ServerName9.11 PBX Configuration—[1-1] Configuration—Slot—V-SIPGW—Port Property—NAT— STUNServer—NameInstallation Manual 3518.6.5 DNS Client
