On 2026-09-08 06:23:16 +0200, Marco Moock wrote: > Am 08.09.26 um 05:50 schrieb Vincent Lefevre: > > On a machine without IPv6 support (IPv6 disabled in the kernel, > > and no IPv6 addresses), how to prevent programs from using IPv6 > > by default? > > Why did you do this?
Note that I am not the admin of the machine. Perhaps for security reasons in case of SLAAC attacks (for which there would be no protection from the old routers, as this could be seen in the past there). > If there is no RA from a router, the machine only has link-local addresses. > It will never try to use that for connections to GUA, so it won't be used > for internet communication. Then I don't see why software tries to use IPv6 when there are no IPv6 addresses at all. -- Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
