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Industrial Managed
Ethernet Switch – EH9711
User Manual
Page
174
of
223
Figure 3.21 Webpage to Monitor DHCP Server Statistics
Table 3.15 Monitoring Descriptions of DHCP Detailed Statistics Port 1
The
DHCP user select box determines which user is affected by clicking the buttons.
The port
select box determines which port is affected by clicking the buttons. Auto-refresh
: Check this box to refresh the page
automatically. Automatic refresh occurs every 3 seconds. Click
Refresh
button to refresh the page immediately. Click
Clear
button to blear all statistics
3.5
Security
3.5.1
Network
3.5.1.1
Port Security Overview
This webpage in Figure 3.22 shows the Port Security status. Port Security is a module with no direct configuration.
Configuration comes indirectly from other modules - the user modules. When a user module has enabled port security on a
port, the port is set-up for software-based learning. In this mode, frames from unknown MAC addresses are passed on to the
port security module, which in turn asks all user modules whether to allow this new MAC address to forward or block it. For
a MAC address to be set in the forwarding state, all enabled user modules must unanimously agree on allowing the MAC
Label
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.
Rx Discarded Checksum
Error
The number of discard packet that IP/UDP checksum is error.
Rx Discarded from
Untrusted
The number of discarded packets that are coming from untrusted port.