Guest

Preview Tool

Cisco Bug: CSCul37580 - dhcp ack still dropped during renewal even after fixing CSCug04222

Last Modified

Feb 20, 2018

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases

15.0(0)SY99.303

Description (partial)

Symptom:
SUP2T is not forwarding DHCP ACK to client when giaddr is not set in the DHCPACK packet

Conditions:
When Dynamic Arp Inspection and DHCP snooping is turned on globally, and on client vlan and dhcp server vlan.
or dhcp option 82 insertion is not configured on the switch and the dhcp server.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.