Specifying A Dedicated Ip Address; Changing An Ip Address; Changing The Other Device's Ip Address - 3Com EtherLink 3C985B-SX User Manual

Specifying a Dedicated IP Address

Bidirectional load balancing requires that you specify a
dedicated IP address for the load balancing group. This
address must be unique (not used elsewhere on the
network). For example:
You specify the dedicated IP address in the Create Group
or Group Properties dialog boxes. Byte 1 is fixed for each
class of subnet; you cannot specify it. Specify the other
bytes in the dedicated IP Address for various classes of
subnets as follows:
I
I
I

Changing an IP Address

If another device is using a load balancing group's
dedicated IP address, you must change either the other
device's IP address or that of the load balancing group.

Changing the Other Device's IP Address

1 Use Windows NT procedures to change the IP address
of the other device.
2 In the Load Balancing/RSL window, select the group
that had the duplicate address.
3 Click Properties.
4 In the Properties dialog box, click OK.
5 In the Load Balancing/RSL window, click OK to exit
the window and restart receive load balancing.
Network ID
Byte 1
Class A 125
Class B 139
Class C 193
Class A — (Byte 1 = 1 – 126.) Specify only bytes 2, 3,
and 4 (the three rightmost boxes).
Class B — (Byte 1 = 128 – 191.) Specify only bytes 3
and 4 (the two rightmost boxes).
Class C — (Byte 1 = 192 – 223.) Specify only byte 4 (the
rightmost box).
Specifying a Dedicated IP Address
Byte 2
24
25
26
Host ID
Byte 3 Byte 4
1 253
2 253
3 253
87