Cisco Bug: CSCup90022 - 8831 accepts untagged DHCP Offer after sending Discover on Voice VLAN
Last Modified
Oct 25, 2019
Products (2)
- Cisco IP Phone 8800 Series
- Cisco Unified IP Conference Phone 8831
Known Affected Releases
9.3(3)
Description (partial)
Symptom: - 8831 displays "Phone not registered" - 8831 is getting an IP address on a VLAN other than the voice VLAN Conditions: - Phone's switchport is configured with both "switchport voice vlan" and "switchport access vlan" - Two different DHCP servers are used for the data and voice VLANs, and the DHCP servers are not VLAN aware
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