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Cisco Bug: CSCvv00912 - BNG generated IPv4 DHCPRelease packet dont include option 82 which cause no release of lease on DHCP

Last Modified

Jul 20, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

6.5.3.BASE

Description (partial)

Symptom:
IPv4 lease release is not happening on IPv4 DHCP server.

Conditions:
One of condition is when subscriber is unable to receive IPv4/IPv6 addresses and it regenerates IPv4 Discover or IPv6 Solicit messages. 
In this condition if BNG is configured with "featurette ipoe-dhcp-client-reboot" then BNG has to generate DHCPRelease packet for both IPv4 and IPv6.
This DHCPRelease IPv4 packet won't have Option-82
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