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Cisco Bug: CSCus97971 - DHCP related server state flapping between SEND_UPDATE and PROBE

Last Modified

Mar 12, 2015

Products (1)

  • Cisco Network Registrar

Known Affected Releases


Description (partial)

There are several issues:
<li>The DHCP server is not always properly honoring the limit on the maximum DNS update requests allowed to be in flight.</li>
<li>The DHCP server improperly believes that a DNS server is not responding when it is.</li>
<li>The DHCP server may not restart DNS updates for DHCPv6 leases when reactivating a server and there are no DNS updates for DHCPv4 outstanding.</li>

These issues may occur when a DNS server stops responding or is slow in responding to DNS update requests.
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Bug Details Include

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