<div dir="ltr"><div class="gmail_default" style="font-size:small">I am running kea 2.0.1 on Rocky Linux 8.5. <br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">My interfaces option is set to:<br> "interfaces": ["eth0"]</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">And I have ip helper addresses set for all the vlans to point dhcp traffic to this server.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Are you 100% sure there is not some other process or dhcp server listening on port 67 on your server?</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I also have a second kea 2.0.1 server ( setup in HA mode with this server). The second server has an interface on each vlan so it can get the dhcp requests directly and not need them forwarded from the router.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">On this server the interfaces option looks like this:<br> "interfaces": ["*"]</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">--Dan</div><div class="gmail_default" style="font-size:small"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Feb 18, 2022 at 8:33 AM Stephen Berg, Code 7309 via Kea-users <<a href="mailto:kea-users@lists.isc.org">kea-users@lists.isc.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I'm evaluating kea 1.8 to eventually integrate into my network. I've <br>
got 6 subnets that I'll be managing eventually. Relay agents will be on <br>
all but one subnet. An initial install and test setup with mysql backend <br>
went okay but I have one show stopper problem now.<br>
<br>
Whenever I start the service I see in the log:<br>
DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: failed to open socket on <br>
interface eth0, reason: failed to bind fallback socket to address <br>
<serverIP>, port 67, reason: Address already in use - is another DHCP <br>
server running?<br>
2022-02-18 08:23:27.547 WARN [kea-dhcp4.dhcpsrv/3416.140158564502848] <br>
DHCPSRV_NO_SOCKETS_OPEN no interface configured to listen to DHCP traffic<br>
<br>
I changed dhcp-socket-type to udp to see if that would change the <br>
behavior and got this:<br>
2022-02-18 08:14:13.653 WARN [kea-dhcp4.dhcpsrv/3218.139637232491840] <br>
DHCPSRV_OPEN_SOCKET_FAIL failed to open socket: failed to open socket on <br>
interface eth0, reason: Failed to bind socket 15 to <serverIP>/port=67<br>
2022-02-18 08:14:13.653 WARN [kea-dhcp4.dhcpsrv/3218.139637232491840] <br>
DHCPSRV_NO_SOCKETS_OPEN no interface configured to listen to DHCP traffic<br>
<br>
This is running on a virtual machine, rocky linux 8.5. Selinux and <br>
firewall have been disabled for testing. Network seems fine on the <br>
system other than this. My initial config is just a couple of reserved <br>
address based on mac address and no pool. If I can get this working I <br>
plan to add reservations for all clients in each of the subnets.<br>
<br>
-- <br>
Stephen Berg, IT Specialist, Ocean Sciences Division, Code 7309<br>
Naval Research Laboratory<br>
W: (228) 688-5738<br>
DSN: (312) 823-5738<br>
C: (228) 365-0162<br>
Email: <a href="mailto:stephen.berg@nrlssc.navy.mil" target="_blank">stephen.berg@nrlssc.navy.mil</a> <- (Preferred contact)<br>
Flank Speed: <a href="mailto:stephen.p.berg.civ@us.navy.mil" target="_blank">stephen.p.berg.civ@us.navy.mil</a><br>
<br>
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