DHCP troublshooting

Owned by Jean-luc KRIKER
Last updated: Dec 09, 2018
1 min read


1- on the SRX ( SRX is the DHCP Client ):

root@srx300-3> show system services dhcp client

Logical Interface name ge-0/0/0.0
Hardware address 30:b6:4f:21:de:80
Client status arpcheck
Address obtained 10.10.10.11
Update server disabled

DHCP options:
Name: server-identifier, Value: 10.10.10.1
Code: 1, Type: ip-address, Value: 255.255.255.0
Name: router, Value: [ 10.10.10.1 ]
Name: name-server, Value: [ 10.10.10.1 ]


root@srx300-3> request system services dhcp release ge-0/0/0.0

root@srx300-3> request system services dhcp renew ge-0/0/0.0


root@srx300-3> show security flow statistics
Current sessions: 0
Packets forwarded: 7
Packets dropped: 1
Fragment packets: 0
Pre fragments generated: 0
Post fragments generated: 0

2- On the server:

root@EX4200_TOR_SELab> show configuration | display set | match traceoptions
set system processes dhcp-service traceoptions file jlkdhcp_logfile
set system processes dhcp-service traceoptions flag all


%tail -F /var/log/jlkdhcp_logfile