Introduction
82
WAN Access Routers Getting Started Guide
8 • DHCP and DNS configuration
assume that the IP address of ip1 is 10.10.19.10/16.
Figure 61
shows that the IP address pool ranges from
10.10.19.11 to 10.10.19.30.
Figure 61. Example based on default range of IP address pool
DNS server option information
When a client requests an IP address from a DHCP server, the server can also send the IP addresses of the pri-
mary and secondary DNS servers’ IP addresses. The Black Box can accomplish this in one of two ways, neither
really having an advantage over the other. This section of the configuration page is one method, the other is
DNS Relay to be described later in this chapter. Refer to
figure 62
.
Figure 62. Configuration of the DNS server IP addresses
Enter the IP addresses of the primary and secondary DNS servers. Subsequently, the client will receive these
addresses when assigned an IP address. When the client makes a DNS inquiry, it sends the request directly to
the appropriate DNS server. The WAN Access Router merely forwards the packet.
The third parameter is ‘Use local host address as DNS server’ which is the IP address of the Black Box. In this
scenario, the client considers the Black Box as a DNS server by sending all requests to the Black Box’s IP
address. The Black Box forwards the request to the DNS servers using the IP address of the actual servers. You
still need to define the IP addresses of the primary and secondary DNS servers in the section because the Black
Box needs to know in order to forward the DNS requests.
Default gateway option information
Summary of Contents for LR120A
Page 1: ...LR120A LR121A LR122A LR125A WAN Access Routers Getting Started Guide...
Page 24: ...19 Chapter 2 Product Overview Chapter contents Introduction 20 Applications overview 21...
Page 115: ...110 Appendix B Cable recommendations Chapter contents Ethernet Cable 111 Adapter 111...
Page 128: ......
