Posted by
Patrick Trapp on
URL: http://isc-dhcp-users.193.s1.nabble.com/dhcpd-doesn-t-acknowledge-dhcp-requests-tp124p219.html
Well done, sir. Thanks for sharing the solution.
________________________________________
From:
[hidden email] [
[hidden email]] on behalf of Sean McMurray [
[hidden email]]
Sent: Friday, June 12, 2015 3:19 PM
To: Users of ISC DHCP
Subject: Re: dhcpd doesn't acknowledge dhcp requests
I finally got it worked out. I'll document what worked for me here in
case it might be helpful to somebody in the future.
In order for dhcpd to recognize and respond to dhcp requests on a vlan,
I had to do two things:
1. Specifically enumerate the interfaces as dhcpd command line arguments
In my case, dhcpd em2.112
2. Set the REORDER HEADER flag
This can be done with vconfig like so: vconfig set_flag em2.112 1 1
I made it permanent by adding it to the ifcfg script on my Redhat
host using the REORDER_HDR=1 option
After these two changes, the dhcpd daemon began responding to dhcp
requests on vlan 112.
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