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<DIV><FONT face="‚l‚r –¾’©">Today<SPAN class=246262404-26072008> morning,something
happened strangely,all the PC can obtain IP address as usual from the DHCP
server,but some printers can not. </SPAN></FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN class=246262404-26072008>I looked up the log and
found some log repeated as flowing: </SPAN></FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN
class=246262404-26072008></SPAN></FONT> </DIV>
<DIV><FONT><SPAN class=246262404-26072008><FONT face=SimSun size=2>Jul 26
09:21:41 dhcp-svr dhcpd: DHCPREQUEST for 10.96.36.181 from 00:c0:ee:60:fd:4b
(design_scaner) via 10.96.36.189</FONT><A
href="mailto:dhcp-users@isc.org"></A></SPAN></FONT></DIV>
<DIV><FONT face=SimSun size=2>Jul 26 09:21:41 dhcp-svr dhcpd: DHCPACK on
10.96.36.181 to 00:c0:ee:60:fd:4b (design_scaner) via 10.96.36.189<BR>Jul 26
09:21:41 dhcp-svr dhcpd: bind update on 10.96.36.181 got ack from
dhcpd-failover: xid mismatch.</FONT></DIV>
<DIV><FONT face=SimSun size=2>09:21:42 dhcp-svr dhcpd: DHCPREQUEST for
10.96.36.181 from 00:c0:ee:60:fd:4b (design_scaner) via 10.96.36.189<BR>Jul 26
09:21:42 dhcp-svr dhcpd: DHCPACK on 10.96.36.181 to 00:c0:ee:60:fd:4b
(design_scaner) via 10.96.36.189<BR>Jul 26 09:21:42 dhcp-svr dhcpd: bind update
on 10.96.36.181 got ack from dhcpd-failover: xid mismatch.</FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"><FONT size=2></FONT></FONT> </DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN class=246262404-26072008>as the above logs
shows,the printer(design_scaner) had obtained its ip,but why it ask a ip
address continously </SPAN></FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"></FONT> </DIV>
<DIV><FONT face="‚l‚r –¾’©">and<SPAN class=246262404-26072008> here also a
printer(hd03107) that can not obtain IP address's log:</SPAN></FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN
class=246262404-26072008></SPAN></FONT> </DIV>
<DIV><FONT><SPAN class=246262404-26072008><FONT face=SimSun size=2>Jul 26
10:19:11 dhcp-svr dhcpd: DHCPDISCOVER from 00:01:e6:9e:5e:97 (hd03107) via
10.96.37.189<BR>Jul 26 10:19:12 dhcp-svr dhcpd: DHCPOFFER on 10.96.37.154 to
00:01:e6:9e:5e:97 (hd03107) via
10.96.37.189</FONT></SPAN></FONT></DIV><FONT><SPAN
class=246262404-26072008><FONT size=2>
<DIV><BR><FONT face=SimSun>Jul 26 10:25:25 dhcp-svr dhcpd: DHCPDISCOVER from
00:01:e6:9e:5e:97 (hd03107) via 10.96.37.189<BR>Jul 26 10:25:26 dhcp-svr dhcpd:
DHCPOFFER on 10.96.37.154 to 00:01:e6:9e:5e:97 (hd03107) via
10.96.37.189</FONT></DIV>
<DIV><BR><FONT face=SimSun>Jul 26 10:25:29 dhcp-svr dhcpd: DHCPDISCOVER from
00:01:e6:9e:5e:97 (hd03107) via 10.96.37.189<BR>Jul 26 10:25:29 dhcp-svr dhcpd:
DHCPOFFER on 10.96.37.154 to 00:01:e6:9e:5e:97 (hd03107) via
10.96.37.189</FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"></FONT> </DIV>
<DIV></FONT><FONT face="‚l‚r –¾’©"><SPAN class=246262404-26072008>In a normal
condition ,the client(hd03107) should send a DHCPREQUEST message after the
server's DHCPOFFER message's arrival.but the client started a new process,who
can tell</SPAN></FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN class=246262404-26072008>whyH</SPAN></FONT></DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN
class=246262404-26072008></SPAN></FONT> </DIV>
<DIV><FONT face="‚l‚r –¾’©"><SPAN class=246262404-26072008>Thanks in
advance</SPAN></FONT></DIV>
<DIV><BR></DIV></SPAN></FONT><FONT face="‚l‚r –¾’©"><SPAN
class=246262404-26072008></SPAN></FONT><!-- Converted from text/rtf format -->
<P><FONT face="‚l‚r –¾’©" size=2></FONT> </P>
<DIV> </DIV>
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