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Cisco Bug: CSCus25426 - Request for chaddr 0000.0000.0000 clients support in IOS-XR dhcp-relay

Last Modified

Feb 02, 2017

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

5.2.0.BASE

Description (partial)

Symptom:
ASR9k/5.2.0 configured for dhcp-relay
DHCP Discover CU sends over MLPPP being dropped

Conditions:
DHCP Discover chaddr set to 0000.0000.0000
that packet gonna be dropped as invalid with the following log
dhcpd[164]: DHCPD: TP4809: Packet Validation failed: BAD MAC address received 0000.0000.0000
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