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Bootp (Bootstrap Protocol) Relay
Bootp Relay Description
Bootp Relay extends Bootstrap Protocol (Bootp) and Dynamic Host
Configuration Protocol (DHCP) operation across multiple hops in a routed
network. In standard Bootp, all interfaces on a LAN are loaded from a single
configuration server on the LAN. Bootp Relay allows configuration requests
to be forwarded to and serviced from configuration servers located outside the
single LAN. Bootp Relay has the following advantages over standard Bootp.
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IPSO's implementation of Bootp Relay is compliant with RFC 951, RFC
1542, and RFC 2131. Bootp Relay supports Ethernet and IEEE 802 LANs
using canonical MAC byte ordering (i.e., clients that specify Bootp htype=1:
802.3 and FDDI).
When an interface configured for Bootp Relay receives a boot request, it
forwards the request to all the servers in its server list. It does this after
waiting a specified length of time to see if a local server answers the boot
request. If a primary IP is specified, it stamps the request with that address,
otherwise it stamps the request with the lowest numeric IP address specified
for the interface.
Voyager Reference Guide
Configuring NTP
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It makes it possible to bootstrap load from redundant servers by allowing
multiple servers to be configured for a single interface. If one of the
redundant configuration servers is unable to perform its job, another will
take its place.
It provides load balancing by allowing different servers to be configured
for different interfaces instead of requiring all interfaces to be loaded
from a single configuration server.
It allows more centralized management of the bootstrap loading of
clients. This becomes more important as the network becomes larger.
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