Cisco Bug: CSCta15415 - DHCP Snooping functionality is not working fine with private vlan
Jan 23, 2017
- Cisco Catalyst 6000 Series Switches
Known Affected Releases
12.2(32.8.11)SX277 12.2(32.8.11)SX279 12.2(33.1.4)SXI
Symptom: When DHCP snooping and Prinvate VLANs are configured, trusted Promiscuous Client didn't receive DHCPDISCOVER from Un-Trusted Isolated DHCP Client. Conditions: Steps to reproduce: Setting primary vlan 100 on UUT Setting isolated vlan 200 on UUT Associating primary vlan 100 to secondary vlan 200 on UUT Map the secondary vlan to SVI of primary vlan Configure DHCP Snooping globally and on Primary Vlan 100 Configure Server as Promiscuous and 2 Client ports as Isolated PVlans Enabled Trust on Promiscuous DHCP Client Port Trusted Promiscuous Client didn't receive DHCPDISCOVER from Un-Trusted Isolated DHCP Client.
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