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Cisco Bug: CSCur72095 - ASR9K doesn't relay OFFER messages with broadcase policy check flag.

Last Modified

Jul 21, 2018

Products (7)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco IOS XR Software
  • Cisco ASR 9922 Router
  • Cisco ASR 9010 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases

4.3.4.BASE

Description (partial)

Symptom:
In this case we can observe initial arp entry is installed after the first OFFER arrives from the server. After 5 minutes it goes into "probe" state and  OFFERs are still arriving on the ASR9K, but ARP entry doesn't get renewed by OFFER messages.

Conditions:
1. We have DHCP relay configured with broadcast policy check flag
2. Client is sending DISCOVERs constantly, but cannot get an ip address for some reason.
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Bug Details Include

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