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Cisco Bug: CSCte95396 - subcriber cannot restart due to dpm not finding the dhcp entry

Last Modified

Feb 01, 2017

Products (7)

  • Cisco IOS
  • Cisco 10000 Performance Routing Engine 4 (PRE4)
  • Cisco 10000 Performance Routing Engine 3 (PRE3)
  • Cisco 7304 NSE-150 Network Services Engine
  • Cisco 10000 Performance Routing Engine 2 (PRE2)
  • Cisco 7304 NPE-G100 Network Processing Engine
  • Cisco 7304 NSE-100 Network Services Engine

Known Affected Releases

12.2(33)SB8 12.2(33)XNE2

Description (partial)

Symptoms: A subscriber cannot enable the SSS session due to DPM not finding 
the binding in the DPM table although the DHCP binding exists as shown by
performing the show ip dhcp server binding command.
Debug sss policy event/err would show "SG-DPM: DHCP Binding does not exist 
    to   query session".
- Subscriber has dhcp binding when doing "show ip binding ..." 
  note: also check the vrf (if any).
- Subscriber has no entry in the dpm policy. 
- Session trigger needs to be l2-connect dhcp 
-If this is a "low lease time and relay dhcp case", 
 make sure subscriber does not send a DHCP packet: 
 waiting for the DHCP binding to disappear (i.e., expire),
 re-enable the user's dhcp forwarding path.
-If this is a "dhcp server" case, clear dhcp binding on the ISG.
-Reload the router

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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
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  • Related Community Discussions
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