RFC 2132 defines DHCP option 43 (Vendor Specific Information) as an opaque object for clients and servers to exchange vendor-specific information. Option 60 (Vendor Class Identifier) lets a client identify its vendor type and configuration.
Checked 2026-10-02
- Vendor
- not restricted
- Product
- not restricted
- Subsystem
- DHCP option 43
- Deployment
- on-premises
- Region
- not restricted
- Release range
- RFC 2132
- Checked
- 2026-10-02
Sources
- RFC 2132: DHCP Options and BOOTP Vendor Extensions — RFC Editor (IETF) · tier 1 standards and regulators · Section 8.4 (Vendor Specific Information); Section 9.13 (Vendor class identifier)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting IP phones that do not get a voice VLAN or DHCP options: source note ip-phone-dhcp-vlan-troubleshooting-opt43-vendor-specific. WarmTransfer. https://warmtransfer.net/knowledge/claims/ip-phone-dhcp-vlan-troubleshooting-opt43-vendor-specific
BibTeX
@misc{warmtransfer-claim-ip-phone-dhcp-vlan-troubleshooting-opt43-vendor-specific,
title = {Troubleshooting IP phones that do not get a voice VLAN or DHCP options: source note ip-phone-dhcp-vlan-troubleshooting-opt43-vendor-specific},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/ip-phone-dhcp-vlan-troubleshooting-opt43-vendor-specific},
note = {Source note ip-phone-dhcp-vlan-troubleshooting-opt43-vendor-specific, checked 2026-10-02}
}