Automatic Ip Configuration Using Dhcp; Manual Ip Configuration - 3Com 3CBLSF26PWRH User Manual

Automatic IP Configuration using DHCP

When you use the automatic IP configuration method, the switch tries to obtain its IP information without
requesting user intervention from a DHCP server on the network.
You should use the automatic IP configuration method if:
Your network uses DHCP to allocate IP information, or
Flexibility is needed. If the switch is deployed onto a different subnet, it will automatically
reconfigure itself with an appropriate IP address, instead of you having to manually reconfigure the
switch.
You can use ip address dhcp-alloc command to define automatic IP configuration method and use
display ip command to view the automatically allocated IP Information through the Console Port (see
CLI Reference Guide).

Manual IP Configuration

When you configure the IP information manually, the switch remembers the information that you enter
until you change it again.
You should use the manual IP configuration method if:
You do not have a DHCP server on your network, or
You want to remove the risk of the IP address ever changing, or
Your DHCP server does not allow you to allocate static IP addresses.
For most installations, 3Com recommends that you configure the switch IP information manually. This
makes management simpler and more reliable as it is not dependent on a DHCP server, and eliminates
the risk of the IP address changing.
You can use ip address command to configure the static IP for your switch through the Console Port
(see CLI Reference Guide).
1-11