Support IP_FREEBIND
Hi, would it be possible to support IP_FREEBIND with HAProxy-1.5 on linux? I'm asking because nonlocal_bind only works for IPv4 and it seems linux upstream does not want to support nonlocal_bind for IPv6. A thread about this can be found here: http://comments.gmane.org/gmane.comp.web.haproxy/7317 Currently I'm binding IP's to a dummy interface so HAProxy can start, but this is starting to become a nightmare. Greets, Sander
Re: Support IP_FREEBIND
On 03.03.2014 14:45, Sander Klein wrote: Hi, would it be possible to support IP_FREEBIND with HAProxy-1.5 on linux? I'm asking because nonlocal_bind only works for IPv4 and it seems linux upstream does not want to support nonlocal_bind for IPv6. A thread about this can be found here: http://comments.gmane.org/gmane.comp.web.haproxy/7317 Currently I'm binding IP's to a dummy interface so HAProxy can start, but this is starting to become a nightmare. Replying to myself... I'm probably looking for the 'transparant' option. Looking at the docs it seems to do what I want... Greets, Sander
RE: Support IP_FREEBIND
Hi, On 03.03.2014 14:45, Sander Klein wrote: Hi, would it be possible to support IP_FREEBIND with HAProxy-1.5 on linux? I'm asking because nonlocal_bind only works for IPv4 and it seems linux upstream does not want to support nonlocal_bind for IPv6. A thread about this can be found here: http://comments.gmane.org/gmane.comp.web.haproxy/7317 Currently I'm binding IP's to a dummy interface so HAProxy can start, but this is starting to become a nightmare. Replying to myself... I'm probably looking for the 'transparant' option. Looking at the docs it seems to do what I want... Yes, the transparent option sets IPV6_TRANSPARENT on IPv6 sockets, which should achieve this. Please let us know if this works for you; we do IP_FREEBIND only on IPv4, not on IPv6. Also, be advised that this is not supported on ancient kernels, support for those things appeared in 2.6.37. You may want to use a 3.x kernel for this. Regards, Lukas
Re: Support IP_FREEBIND
Hi Sander, On Mon, Mar 03, 2014 at 04:01:12PM +0100, Lukas Tribus wrote: Hi, On 03.03.2014 14:45, Sander Klein wrote: Hi, would it be possible to support IP_FREEBIND with HAProxy-1.5 on linux? I'm asking because nonlocal_bind only works for IPv4 and it seems linux upstream does not want to support nonlocal_bind for IPv6. A thread about this can be found here: http://comments.gmane.org/gmane.comp.web.haproxy/7317 Currently I'm binding IP's to a dummy interface so HAProxy can start, but this is starting to become a nightmare. Replying to myself... I'm probably looking for the 'transparant' option. Looking at the docs it seems to do what I want... Yes, the transparent option sets IPV6_TRANSPARENT on IPv6 sockets, which should achieve this. Please let us know if this works for you; we do IP_FREEBIND only on IPv4, not on IPv6. Also, be advised that this is not supported on ancient kernels, support for those things appeared in 2.6.37. You may want to use a 3.x kernel for this. Please test the snapshot from this morning, it contains Lukas' patch. Willy
