On Fri 26 Mar 2021, Harry Mangalam via rsync wrote: > > I'm trying to improve a parallel rsync wrapper called parsyncfp (pfp) in > response to a user request. He wants rsync to emit data on multiple > interfaces (one interface per rsync instance). From the man page it seems > like the '--address' option would do that and in fact using it as such does > not result in an error, but it also does not result in both interfaces > being used, either from pfp or when launched directly from different shells. > > My route (working from home) shows the 2 wlan interfaces up with > different IP #s: > wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 > inet 192.168.1.223 netmask 255.255.255.0 broadcast 192.168.1.255 > ... > > wlx9cefd5fb0bb5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 > inet 192.168.1.186 netmask 255.255.255.0 broadcast 192.168.1.255
As both interfaces are on the same network, the kernel will use one interface to transmit data to that network. > and route shows: > $ route > > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use > Iface > default router.asus.com 0.0.0.0 UG 601 0 0 > wlx9cefd5fb0bb5 > default router.asus.com 0.0.0.0 UG 602 0 0 Here you see wlx9cefd5fb0bb5 has a lower metric, hence it will preferentially be used. You need to dive deeper into linux policy based routing, to force traffic e.g. from a particular IP address out over a certain interface. This is totally outside the scope of rsync; there's nothing rsync can do to influence this. You need the 'ip rule' and 'ip route' commands. Paul -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
