
TCP, FTP, TFTP, Telnet, NTP, and NetBIOS over IP Concepts
117358-A Rev. A 2-23
The server responds to the name query request by issuing a positive name query
response, containing the IP address of the server, to NetBIOS on the host. The
following steps occur (F
igure 2-9):
1. NetBIOS sends the response to router A as a unicast message.
2. Router A and router B forward the unicast response to the awaiting client.
Now that the client has obtained the server’s IP address from the name query
response, client and server can communicate by exchanging IP messages.
Figure 2-9. Returning a Unicast Name Query Response
c
c
Router C
Client
Server
Router A
Router B
Router D
Key
NetBIOS/IP Interface
IP0034A
s
s
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