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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


Description (partial)

IPv4 lease release is not happening on IPv4 DHCP server.

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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