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C
ONFIGURING
THE
S
WITCH
3-218
address pool matching the gateway where the request originated (i.e., if
the request was forwarded by a relay server). If there is no gateway in
the client request (i.e., the request was not forwarded by a relay server),
the switch searches for a network pool matching the interface through
which the client request was received. It then searches for a manually
configured host address that falls within the matching network pool. If
no manually configured host address is found, it assigns an address
from the matching network address pool. However, if no matching
address pool is found the request is ignored.
• When searching for a manual binding, the switch compares the client
identifier and then the hardware address for DHCP clients. Since
BOOTP clients cannot transmit a client identifier, you must configure
a hardware address for this host type. If no manual binding has been
specified for a host entry with a hardware address or client identifier,
the switch will assign an address from the first matching network pool.
• If the subnet mask is not specified for network or host address pools,
the class A, B, or C natural mask is used (see page 3-276). The DHCP
server assumes that all host addresses are available. You can exclude
subsets of the address space by using the IP Excluded Address field on
the DHCP Server General configuration page.
Command Attributes
Creating a New Address Pool
• Pool Name – A string or integer. (Range: 1-8 characters)
Setting the Network Parameters
• IP – The IP address of the DHCP address pool.
• Subnet Mask – The bit combination that identifies the network (or
subnet) and the host portion of the DHCP address pool.
Setting the Host Parameters
• IP – The IP address of the DHCP address pool.