
Connecting BayStack AN and ANH Systems to a Network
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6. The AN/ANH assigns the IP address and subnet mask to any
synchronous interface that receives a BOOTP response.
7. The AN/ANH stores these addresses, along with the address of the
next-hop router, in random-access memory (RAM).
If both synchronous interfaces receive BOOTP responses, the AN/ANH
assigns the respective IP addresses to each interface.
Getting Kernel Image and Configuration Files
With a known IP address, the AN/ANH can get image and configuration files.
1. The AN/ANH sends a BOOTP request for the pathnames of a
configuration file and image kernel.
The router issues the request simultaneously through all synchronous and
Ethernet interfaces that have IP addresses. It issues this request periodically
for about 3 minutes, regardless of whether a cable is connected.
2. A BOOTP server responds to the router’s request with the directory
pathnames
(Figure 1-3).
Figure 1-3. Getting the Pathnames of the Kernel and Configuration Files
Key
BOOTP response
BOOTP request
Corporate backbone
Pathnames
BOOTP
server
AN/ANH router
CAN0003A
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