Bug 2210713

Summary: [RFE] NM: Support DHCP option ipv6-only (RFC 8925)
Product: [Fedora] Fedora Reporter: Petr Menšík <pemensik>
Component: NetworkManagerAssignee: Lubomir Rintel <lkundrak>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: rawhideCC: bgalvani, dcbw, ferferna, gnome-sig, liangwen12year, lkundrak, mclasen, rstrode, vbubela
Target Milestone: ---Keywords: RFE
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Hardware: Unspecified   
OS: Linux   
URL: https://www.rfc-editor.org/rfc/rfc8925.html
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Bug Blocks: 2210710    

Description Petr Menšík 2023-05-29 09:03:58 UTC 
Network can signal it can support IPv4, but requests all prepared systems to use only IPv6 addresses. That can be interesting especially where no IPv4 NAT is done and hosts get assigned public addresses.

Reproducible: Always

Steps to Reproduce:
1. DHCP server offers ipv6-only extension
2. Connect to such network
3. IPv4 address should not be allocated, even if the network provides DHCPv4
Comment 1 Petr Menšík 2023-05-29 09:15:41 UTC 
Has already upstream request:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1298