Re: [qubes-users] MTU setting for all interfaces
On Monday, February 25, 2019 at 12:14:34 AM UTC+10, unman wrote: > On Sun, Feb 24, 2019 at 02:02:10PM +1000, Beto HydroxyButyrate wrote: > > I have MTU 9000 set on my internal network. sys-net connects to this > > network. > > > > I want all qubes VM interfaces to default to MTU 9000 rather than 1500. > > > > Is there some simple global setting I can make to enable this? > > You could set it at the router level in sys-net using a mangle table. > This is available for both iptables and nftables. > I've done this with iptables in the past and I dont recall issues with > conntrack and connected clients. ymmv > > iptables has tcp-MSS patch that allows you to hit this in FORWARD rules > - dont know if similar is available for nftables. > > unman Not quite what I want. I want to be able to have all current and future VM instances which have networking enabled be provisioned with interfaces with the MTU set to 9000. I do not want any local s/w to be mangling the jumbo frames. I want jumbo frames flowing freely and naturally, as ghod and Selina Lo intended, between, for instance, my NAS drive and various VMs. Mainly for NAS SMB and/or NFS for performance. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/abab22f9-6340-4806-8212-50bc6bc4cdf9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] MTU setting for all interfaces
On Sun, Feb 24, 2019 at 02:02:10PM +1000, Beto HydroxyButyrate wrote: > I have MTU 9000 set on my internal network. sys-net connects to this > network. > > I want all qubes VM interfaces to default to MTU 9000 rather than 1500. > > Is there some simple global setting I can make to enable this? You could set it at the router level in sys-net using a mangle table. This is available for both iptables and nftables. I've done this with iptables in the past and I dont recall issues with conntrack and connected clients. ymmv iptables has tcp-MSS patch that allows you to hit this in FORWARD rules - dont know if similar is available for nftables. unman -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/20190224141432.n76eoa5geseil5kk%40thirdeyesecurity.org. For more options, visit https://groups.google.com/d/optout.
[qubes-users] MTU setting for all interfaces
I have MTU 9000 set on my internal network. sys-net connects to this network. I want all qubes VM interfaces to default to MTU 9000 rather than 1500. Is there some simple global setting I can make to enable this? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/deb2ae5e-6a2b-6fe1-17d1-ff53c6f7fc6d%40damon.com. For more options, visit https://groups.google.com/d/optout.
