Re: [PATCH wireguard] wireguard: prevent ipv6 addrconf via IFF_NO_ADDRCONF flag
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: 2026-03-11 22:59:49
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Hi Valentin, On Sun, Feb 08, 2026 at 06:05:45PM +0100, Valentin Spreckels wrote:
Use the flag introduced in commit 8a321cf7becc6 ("net: add
IFF_NO_ADDRCONF and use it in bonding to prevent ipv6 addrconf")
instead of mangling the addr_gen_mode to prevent ipv6 addrconf.Can you give some more context here? Why was IFF_NO_ADDRCONF added when the IN6_ADDR_GEN_MODE_NONE method has been working fine? What's the difference between these approaches? I don't doubt that your patch is correct, but I would like to better understand this. Jason