Re: upgrade to F19: now dhcpd works then fails

Just upgraded from 18 > 19. dhcpd works, for a while and then stops recognizing DCHP requests. On restart, it works again. Here I start tailing /var/log/messages: Jan 2 11:57:00 new-gateway systemd-logind[316]: New session 6 of user root. No dhcp log messages. But tcpdump shows lots received: 11:57:01.210319 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:02.210316 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:13.205292 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:14.205304 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:15.205282 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:18.897303 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:0b:82:40:0e:93, length 548 11:57:21.983290 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:0b:82:40:0e:93, length 548 11:57:25.061279 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:0b:82:40:0e:93, length 548 11:57:26.200279 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:27.200284 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:28.199258 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:28.848254 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from cc:6d:a0:11:22:a0, length 548 11:57:39.198233 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:40.195231 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 11:57:41.194227 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:15:99:6a:9c:94, length 554 ,,,,,,,,, Now I systemctl restart dhcpd, and it recognizes all the DHCP requests: Jan 2 11:59:36 new-gateway systemd[1]: Started DHCPv4 Server Daemon. Jan 2 11:59:36 new-gateway dhcpd: Internet Systems Consortium DHCP Server 4.2.5 Jan 2 11:59:37 new-gateway dhcpd: Copyright 2004-2013 Internet Systems Consortium. Jan 2 11:59:37 new-gateway dhcpd: All rights reserved. Jan 2 11:59:37 new-gateway dhcpd: For info, please visit https://www.isc.org/software/dhcp/ Jan 2 11:59:37 new-gateway dhcpd: Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file Jan 2 11:59:37 new-gateway dhcpd: Wrote 0 deleted host decls to leases file. Jan 2 11:59:37 new-gateway dhcpd: Wrote 0 new dynamic host decls to leases file. Jan 2 11:59:37 new-gateway dhcpd: Wrote 12 leases to leases file. Jan 2 11:59:37 new-gateway dhcpd: Jan 2 11:59:37 new-gateway dhcpd: No subnet declaration for wlan0 (no IPv4 addresses). Jan 2 11:59:37 new-gateway dhcpd: ** Ignoring requests on wlan0. If this is not what Jan 2 11:59:37 new-gateway dhcpd: you want, please write a subnet declaration Jan 2 11:59:37 new-gateway dhcpd: in your dhcpd.conf file for the network segment Jan 2 11:59:37 new-gateway dhcpd: to which interface wlan0 is attached. ** Jan 2 11:59:37 new-gateway dhcpd: Jan 2 11:59:37 new-gateway dhcpd: Listening on LPF/external/00:1d:72:05:4a:68/24.0.0.0/8 Jan 2 11:59:37 new-gateway dhcpd: Sending on LPF/external/00:1d:72:05:4a:68/24.0.0.0/8 Jan 2 11:59:37 new-gateway dhcpd: Listening on LPF/internal/00:e0:4c:03:07:ba/10.10.11.0/24 Jan 2 11:59:37 new-gateway dhcpd: Sending on LPF/internal/00:e0:4c:03:07:ba/10.10.11.0/24 Jan 2 11:59:37 new-gateway dhcpd: Sending on Socket/fallback/fallback-net Jan 2 11:59:38 new-gateway dhcpd: DHCPDISCOVER from 00:15:99:6a:9c:94 via internal Jan 2 11:59:38 new-gateway dhcpd: DHCPOFFER on 10.10.11.152 to 00:15:99:6a:9c:94 via internal Jan 2 11:59:38 new-gateway dhcpd: DHCPREQUEST for 10.10.11.152 (10.10.11.251) from 00:15:99:6a:9c:94 via internal Jan 2 11:59:38 new-gateway dhcpd: DHCPACK on 10.10.11.152 to 00:15:99:6a:9c:94 via internal Jan 2 11:59:40 new-gateway dhcpd: DHCPREQUEST for 10.10.11.152 (10.10.11.251) from 00:15:99:6a:9c:94 via internal Jan 2 11:59:40 new-gateway dhcpd: DHCPACK on 10.10.11.152 to 00:15:99:6a:9c:94 via internal Jan 2 11:59:51 new-gateway dhcpd: DHCPDISCOVER from 00:0b:82:40:0e:93 via internal Jan 2 11:59:51 new-gateway dhcpd: DHCPOFFER on 10.10.11.182 to 00:0b:82:40:0e:93 via internal Jan 2 11:59:51 new-gateway dhcpd: DHCPREQUEST for 10.10.11.182 (10.10.11.251) from 00:0b:82:40:0e:93 via internal Jan 2 11:59:51 new-gateway dhcpd: DHCPACK on 10.10.11.182 to 00:0b:82:40:0e:93 via internal but later it will stop recognizing the DHCPDISCOVER packets. No log message about failure or error. Any help appreciated. sean