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<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>Dear
all,</FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>I have two DHCP
servers configured as failover peer and the router relay the DHCP/Bootp request
to both server. When the system works normaly, a DHCP discover from client will
be broadcast to both server and the observed behavour is that both server will
offer an DHCP OFFER to the same client, The primary DHCP server shall reply an
IP-A managed by the Primary, and the Secondary shall reply an IP-B that is
managed by the secondary. Assume the client select IP-A and send an DHCP Request
for IP-A to both server. </FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>However recently,
primary server disk is full, and in the log there are a lot
of</FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>ommit_leases: unable
to commit: No space left on device</FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>We observed that the
DHCP does not failover to the secondary in this case, and the primary will still
response to DHCPDISCOVER and provide a DHCP Offer. And in this case, we
observed that most client does not try the DHCP offer from secondary but most of
them choose the IP assigned from the Primary DHCP server.</FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>Is this behaviour
normal?</FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>Are there any
configuration that can make the server fail to secondary DHCP server for similar
case or let the client try the other DHCP OFFER when the first DHCP IP does not
have a ACK?</FONT></SPAN></DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><SPAN class=513203918-27052013><FONT size=2 face=Arial>Thanks for your help
on this matter.</FONT></SPAN></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV class=Section1>
<P style="MARGIN: 5pt 0in; mso-layout-grid-align: none" class=MsoNormal
align=left><SPAN style="FONT-FAMILY: Arial; FONT-SIZE: 10pt">Louis
Lau<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office"
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<P style="MARGIN: 5pt 0in; mso-layout-grid-align: none" class=MsoNormal><SPAN
style="FONT-FAMILY: Arial; FONT-SIZE: 10pt"><o:p> </o:p></SPAN></P></DIV></BODY></HTML>