LevelOne GTL-2691 - Manual (Page 577)

C HAPTER 16 | IP Configuration
Sending DHCP Inform Requests for Additional Information
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Figure 341: Showing the Configured IP Address for an Interface
S ENDING DHCP I NFORM R EQUESTS FOR A DDITIONAL I NFORMATION
Use the IP > General > Routing Interface (Configure Interface) page to
submit a DHCP request for information about the default domain name
server and default gateway from a VLAN interface configured with a static
IPv4 address.
CLI R EFERENCES
◆ "ip dhcp inform" on page 1363
C OMMAND U SAGE
◆ A DHCP Inform request can only be issued for a VLAN interface which
has been configured with a static IPv4 address.
◆ The switch will continue sending DHCP inform requests until it receives
an acknowledgement from the server. If the retry interval is larger than
60 seconds, the switch will stop sending requests, record a log entry,
and then wait for another 300 seconds before trying again.
◆ When the server receives a DHCP inform request, it will return the
requested optional information to the host without assigning an IP
address. If there is no option 6 (DNS) in the DHCP acknowledgement,
the switch will delete all configured name servers. If there is more than
one gateway address in option 3 (default gateway), the switch will use
the first entry.
◆ If the interface address is changed to another static IP address in a
different subnet, the DHCP inform request should be sent again.
P ARAMETERS
These parameters are displayed:
◆ VLAN – ID of configured VLAN (1-4093).
◆ DHCP Inform – Submits a DHCP request for information about the
default domain name server and default gateway from a VLAN interface
configured with a static IPv4 address.