3Com MSR 50 Network Router User Manual


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754 CHAPTER 56: DHCP DEBUGGING COMMANDS
Broadcast flag: BroadcastFlag DHCP broadcast flag: 1 refers to broadcast, and 0
refers to unicast.
Your IP address: YourIPAddress IP address that the DHCP server assigns to the client
Boot file name: BootFileName Boot file name and path
DHCP message type:
DHCPmessagetype
DHCP message type, which can be:
DHCP Discover
DHCP Offer
DHCP Request
DHCP Decline
DHCP ACK
DHCP NAK
DHCP Release
DHCP Inform
Table 139 Description on the fields of the debugging dhcp server event command
Field Description
Sending ICMP ECHOREQUEST to
target IP: ip-address.
An ICMP request is sent to verify whether the IP
address is being used.
ICMP still need to detect for time(s)
time(s).
The times for sending ICMP packets to detect the
lease
Send Message-Type to clientID/MAC
Offer IP=> ip-address via ip-address.
Succeeded in sending the DHCP packet
Failed to send Message-Type to
clientID/MAC.
Failed to send the DHCP packet
Find manual binding lease
successfully.
A static binding entry is found.
Assign Lease-Type Lease from global
pool.
Assign a lease from the global address pool. The lease
type can be Used, Free, and Timeout.
Reclaim conflicted IP Address from
global pool.
Assign a lease from conflicted IP addresses in the
global address pool
Lease is exhausted! The lease duration expires.
Acknowledge the DHCPREQUEST
message!
The DHCP server returns an ACK message and assigns
the requested IP address to the client.
Deny DHCPREQUEST message! The DHCP server returns an NAK message and does
not assign the requested IP address to the client.
Table 140 Description on the fields of the debugging dhcp server error command
Field Description
Dealing with packet failed! Failed to process the DHCP packet
Decoding DHCP packet failed! Failed to parse the DHCP packet
ucOp error! DHCP packet type error
Building option failed! Failed to create an option
No free buffer for option! No free buffer space to create options
Deleting lease failed when manual
binding!
Failed to delete the lease when configuring a static
binding entry
Table 138 Description on the fields of the debugging dhcp server packet command
Field Description