Rainer Dorsch wrote: > I have a system which comes up with one IP address 192.168.178.87 via > dhclient, then after one day it gets eventually a different address > 192.168.178.88 from my fritz.box, which runs the dhcp server: On your fritz.box what does the dhcpd log to the syslog? grep dhcpd /var/log/syslog And if you need to go back futher than a day: zgrep dhcpd /var/log/syslog* | less Also very useful for debugging is the dhcpdump utility. $ apt-cache show dhcpdump Description-en: Parse DHCP packets from tcpdump This package provides a tool for visualization of DHCP packets as recorded and output by tcpdump to analyze DHCP server responses. Bob
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