Product guide

IP Routing Features
Configuring DHCP Relay
the sequential index number for that port position in the slot. (To view the
Index number assignments for ports in the routing switch, use the walkmib
ifname command.)
For example, the circuit ID for a client connected to port 11 on a ProCurve
2650-PWR (J8165A) switch is “11”. However, the Circuit ID for port B11
on a ProCurve 5304xl (J4850A) is “37”. (See Figure 11-31, below.)
Figure 11-31.Using Walkmib To Determine the Circuit ID for a Port on a ProCurve Chassis
In this example, the 5304xl has a 4-port module
installed in slot “A” and a 24-port module installed in
slot “B”. Thus, the first port numbers in the listing are
the Index numbers reserved for slot “A”. The first Index
port number for slot “B” is “27”, and the Index port
number for port B11 (and therefore the Circuit ID
number) is “37”.
The Index (and Circuit ID) number for port B11
on a 5304xl routing switch.
For example, suppose you wanted port 10 on a given relay agent to support
no more than five DHCP clients simultaneously, you could configure the server
to allow only five IP addressing assignments at any one time for the circuit ID
(port) and remote ID (MAC address) corresponding to port 10 on the selected
relay agent.
Similarly, if you wanted to define specific ranges of addresses for clients on
different ports in the same VLAN, you could configure the server with the
range of IP addresses allowed for each circuit ID (port) associated with the
remote ID (IP address) for the selected VLAN.
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