Juniper Junos OS, Getting Started Manual

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Table 19: show system services dhcp client Output Fields (continued)
Field Description Field Name
Total packets dropped. Packets dropped
Number of the following DHCP messages received:
•
DHCPOFFER
—First packet received on a logical interface when DHCP is enabled.
• DHCPACK —When received from the server, the client sends an ARP request for that
address and adds a (ARP response) timer for 4 seconds and stops the earlier timer
added for DHCPACK.
•
DHCPNAK
—When a DHCPNAK is received instead of DHCPACK, the logical interface
sends a DHCPDISCOVER packet.
Messages received
Number of the following DHCP messages sent:
• DHCPDECLINE —Packet sent when ARP response is received and there is a conflict.
The logical interface sends a new DHCPDISCOVER packet.
•
DHCPDISCOVER
—Packet sent on the interface for which the DHCP client is enabled.
•
DHCPREQUEST
—Packet sent to the DHCP server after accepting the DHCPOFFER.
After sending the DHCPREQUEST, the device adds a retransmission-interval timer.
• DHCPINFORM —Packet sent to the DHCP server for local configuration parameters.
•
DHCPRELEASE —Packet sent to the DHCP server to relinquish network address and
cancel remaining lease.
•
DHCPRENEW
—Packet sent to the DHCP server to renew the address. The next message
to be sent will be a DHCPREQUEST message, which will be unicast directly to the
server.
•
DHCPREBIND
—Packet sent to any server to renew the address. The next message to
be sent will be a DHCPREQUEST message, which will be broadcast.
Messages sent
Sample Output
show system services dhcp client
user@host> show system services dhcp client
Logical Interface Name ge-0/0/1.0
Hardware address 00:0a:12:00:12:12
Client Status bound
Vendor Identifier ether
Server Address 10.1.1.1
Address obtained 10.1.1.89
update server enabled
Lease Obtained at 2006-08-24 18:13:04 PST
Lease Expires at 2006-08-25 18:13:04 PST
DHCP Options :
Name: name-server, Value: [ 10.209.194.131, 2.2.2.2, 3.3.3.3 ]
Name: server-identifier, Value: 10.1.1.1
Name: router, Value: [ 10.1.1.80 ]
Name: domain-name, Value: netscreen-50
Sample Output
show system services dhcp client ge-0/0/1.0
user@host> show system services dhcp client ge-0/0/1.0
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Chapter 12: Operational Commands