User's Manual

UTT Technologies Chapter 7 Advanced Setup
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Address is free, the DHCP server will assign it to the client. If a match is found, but
this Requested IP address is in use, the DHCP server will try to assign another
address dynamically from the address pool. Else, do the next step.
7˅ If no matching parameter found, the DHCP server will find an assignable IP address
from each DHCP address pool in the chronological order of creation. Once an
assignable IP address is found, the DHCP server will assign it to the client.
8˅ If no IP address is assignable, the DHCP server will report an error.
Note
1) You may create a manual binding by mapping an IP address to a host¶s MAC address,
Remote ID or Client ID. The priorities of Remote ID, Client ID and MAC Address are
descending. Only the highest priority parameter will be in effect when two or three of
them are configured. For example, if there is a manual binding that contains an IP
address bound to Remote ID and Client ID, the Client ID will be of no effect. That is, if
a message sent by a client contains a mismatched Remote ID option, even if it
contains a matched Client ID option, the client FDQ¶W obtain the specified IP address.
2) If a message sent by a client contains Circuit ID or giaddr option that matches a
DHCP address pool, the DHCP server will search the manual bindings belong to this
address pool to find out if there is a DHCP manual binding contains the client¶s Client
ID or MAC address. If a match is found, the DHCP server will assign the specified IP
address to the client. Else, the DHCP server will try to find out if there is a DHCP
manual binding contains this Requested IP Address. If a match is found, the DHCP
server will assign it to the client. Else, the DHCP server will try to assign an address
dynamically from this address pool.
3) If a message sent by a client matches a DHCP manual binding, but doesn¶t match the
Circuit ID or giaddr option that is specified in the related DHCP address pool, the
DHCP server will assign the address that is specified in this DHCP manual binding to
the client.
4) If a message sent by a client matches a DHCP manual binding, but the specified IP
address is already in use by another client (that is, an address conflict is detected),
the DHCP server won¶t assign any IP address to the client.
5) If a message sent by a client contains Circuit ID or giaddr option that matches a
DHCP address pool, but there is no free address in this pool, the DHCP server will
assign an address from other DHCP address pools to the client.
7.8.2.2 Introduction to DHCP Client
When acting as a DHCP client, the Device can dynamically obtain an IP address and