Chapter 4: Web management
234
NS3550-8T-2S Industrial Managed Switch User Manual
The page includes the following fields:
Object
Description
Rx and Tx Discover
The number of discover (option 53 with value 1) packets received and
transmitted.
Rx and Tx Offer
The number of offer (option 53 with value 2) packets received and
transmitted.
Rx and Tx Request
The number of request (option 53 with value 3) packets received and
transmitted.
Rx and Tx Decline
The number of decline (option 53 with value 4) packets received and
transmitted.
Rx and Tx ACK
The number of ACK (option 53 with value 5) packets received and
transmitted.
Rx and Tx NAK
The number of NAK (option 53 with value 6) packets received and
transmitted.
Rx and Tx Release
The number of release (option 53 with value 7) packets received and
transmitted.
Rx and Tx Inform
The number of inform (option 53 with value 8) packets received and
transmitted.
Rx and Tx Lease
Query
The number of lease query (option 53 with value 10) packets received and
transmitted.
Rx and Tx Lease
Unassigned
The number of lease unassigned (option 53 with value 11) packets received
and transmitted.
Rx and Tx Lease
Unknown
The number of lease unknown (option 53 with value 12) packets received
and transmitted.
Rx and Tx Lease
Active
The number of lease active (option 53 with value 13) packets received and
transmitted.
Buttons
• Click
Auto-refresh
to refresh the page automatically. Automatic refresh occurs
every three seconds.
• Click
Refresh
to refresh the page immediately.
• Click
Clear
to clear the counters for the selected port.
IP source guard configuration
IP Source Guard is a secure feature used to restrict IP traffic on DHCP snooping
untrusted ports by filtering traffic based on the DHCP Snooping Table or manually
configured IP Source Bindings. It helps prevent IP spoofing attacks when a host tries to
spoof and use the IP address of another host. The IP Source Guard Configuration page
provides IP Source Guard-related configuration data.