This is a problem very similar to a posting made by Trekow, but slightly different.
My network is setup like this
ADSL router > SMEServer > clients
On the external side the SME server receives an (dhcp) ip number from the router and on the internal network the SME is a dhcp server, the problem is just my server went crazy, CPU used 80-90% all the time because S16adjust-masq, S55email-conf, S80pptpd-conf, S55mailfront-co, S47proftpd-conf, S50conf-securit, S85update-dns always was restarting.
When i look in the log I see:
Sep 17 00:25:31 esmith dhcpcd[7111]: broadcasting DHCP_REQUEST for 10.0.0.9
Sep 17 00:25:31 esmith dhcpcd[7111]: broadcastAddr option is missing in DHCP server response. Assuming 10.0.0.255
Sep 17 00:25:31 esmith dhcpcd[7111]: DHCP_ACK received from (10.0.0.2)
Sep 17 00:25:31 esmith dhcpcd[7111]: dhcpConfig: ioctl SIOCADDRT: File exists
Sep 17 00:25:32 esmith dhcpcd[7111]: infinite IP address lease time. Exiting
And this entry goes on ever 20 second or so.
If I set a static ipadress on the external side the problem dissapear, but alas so does my clients ability to resolve DNS.
Has anyone a solution to this problem?