mrcast is interesting (Hadn't stumbled across it before) but while it handles multicat, it doesn't seem to be able to handle multiple interfaces, if I read the docs correctly. Am I wrong? harry
On Fri, Mar 26, 2021 at 12:29 PM Dan Stromberg <drsali...@gmail.com> wrote: > > Hi Harry. Are you the person I worked with at UCI a bit? > > Anyway, you might consider trying mrsync; it's intended to do rsync over > multicast. > > HTH. > > On Fri, Mar 26, 2021 at 12:22 PM Harry Mangalam via rsync < > rsync@lists.samba.org> wrote: > >> Spent an hour trying to find the answer to this on the various SO, SF, >> other usual suspects, but have failed. >> >> 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 >> ... >> 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 >> wlp3s0 >> link-local 0.0.0.0 255.255.0.0 U 1000 0 0 >> wlp3s0 >> 192.168.1.0 0.0.0.0 255.255.255.0 U 601 0 0 >> wlx9cefd5fb0bb5 >> 192.168.1.0 0.0.0.0 255.255.255.0 U 602 0 0 >> wlp3s0 >> >> and while the arp results from the rsyncing machine look OK: >> $ arp -n >> >> Address HWtype HWaddress Flags Mask >> Iface >> 192.168.1.107 ether 90:73:5a:f1:23:ee C >> wlx9cefd5fb0bb5 >> 192.168.1.107 ether 90:73:5a:f1:23:ee C >> wlp3s0 >> 192.168.1.1 ether 74:d0:2b:5e:32:40 C >> wlp3s0 >> 192.168.1.139 ether d8:31:34:64:bc:f0 C >> wlp3s0 >> 192.168.1.139 ether d8:31:34:64:bc:f0 C >> wlx9cefd5fb0bb5 >> 192.168.1.198 ether 94:94:26:08:b2:4e C >> wlx9cefd5fb0bb5 >> 192.168.1.1 ether 74:d0:2b:5e:32:40 C >> wlx9cefd5fb0bb5 >> >> >> the arp table from another machine on the same net show this: >> $ arp -n >> Address HWtype HWaddress Flags Mask >> Iface >> 192.168.1.203 ether b0:68:e6:3d:58:a7 C >> wlp3s0 >> 192.168.1.107 ether 90:73:5a:f1:23:ee C >> wlp3s0 >> 192.168.1.186 ether 9c:ef:d5:fb:0b:b5 C >> wlp3s0 >> 192.168.1.1 ether 74:d0:2b:5e:32:40 C >> wlp3s0 >> 192.168.1.223 ether 9c:ef:d5:fb:0b:b5 C >> wlp3s0 >> >> and the rsync machine is the .186 and .223 above, indicating that the 2 >> interfaces are regarded as the same MAC. >> >> The alternating rsync commands generated from pfp are: >> rsync --address=192.168.1.223 --bwlimit=1000000 -a -s >> --log-file=/home/hjm/.parsyncfp/rsync-logfile-14.34.52_2021-03-25_16 >> --files-from=/home/hjm/.parsyncfp/fpcache/f.16 '/home/hjm' >> bridgit:/home/hjm/test >> >> and >> >> rsync --address=192.168.1.186 --bwlimit=1000000 -a -s >> --log-file=/home/hjm/.parsyncfp/rsync-logfile-14.34.52_2021-03-25_17 >> --files-from=/home/hjm/.parsyncfp/fpcache/f.17 '/home/hjm' >> bridgit:/home/hjm/test >> >> But the byte streams show only data flowing on one. This is the case >> whether the rsyncs are started from parsyncfp or via separate rsyncs >> started from separate shells. >> Before I go further down the rabbit hole and start messing with ARP >> tables and network namespaces, was this the intent of the option or am I >> misunderstanding it? >> On the server side, the --address option seems to be used to bind the >> responding IP# and while I haven't tried that, that seems to be >> straightforward (but not useful for me). >> >> thanks in advance for such a magical program >> Harry >> -- >> >> Harry Mangalam >> -- >> 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 >> > -- Harry Mangalam
-- 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
