message over networks

Julien Bayle's icon

hello,
just in case I made a big mistake...

using udpsend, udpreceive with 127.0.0.1 loopback adress... all is ok.
as soon as I want to use ip adress, it doesn't work (here)

I have 2 computers which have to communicate.
using wireshark ethernet sniffer on the receiver, I can trace the message sent by the emitter.
no problem.

but max seems to not catch these messages excepted if I use internal loopback adress (=inside the computer only)

any ideas? ways?
a big trick I missed because I'm too bad ...?
is there "a kind of" full-compliance OSC message test under the hood and mine wouldn't be standard ...?

oops, the patch:
[udpreceive 192.168.0.30] ----- [print received]

:D

AlexHarker's icon

Check any firewall settings - I've had a lot of issues with macs (especially on 10.5) that are set up conservatively, and the firewall is blocking MaxMSP.

Als - give [mxj net.maxhole] a quick try (probably the help file is all you need - boot it on both computers). If you can't get maxhole communicating then it's probably a network setup issue, rather than a MaxMSP problem.

HTH

A.

Julien Bayle's icon

shutted down it, all the same.

wireshark gets messages... it means the network is ok :-(

Julien Bayle's icon

trying to troubleshoot that... without any success :-(

Ad.'s icon

Try in terminal ping 192.168.0.30 .
If it's nothing occurs, ports aren't fowarded, see your router config.

Julien Bayle's icon

no router
only a basic LAN with a 24bits mask ip range
ping is ok

Ad.'s icon

For both computers ? ping computer A on your computer B and inverse…
You are in local network ? Are you in automatic ip config ?
Have you indicate the port used to your object udpreceive ? And the ip and the port to your object udpsend ?
Ad/

Julien Bayle's icon

no problem for network connectivity.
static ips
ip/port on udpsend
port on udpreceive => and this one seems to receive ONLY on the loopback

AlexHarker's icon

did you try maxhole? If so - you got nothing?

A.

Julien Bayle's icon

maxhole are multicast I guess.
it doesn't fit with my emitter :-(

Ad.'s icon

Which port ?
Post your patch, because that should work without any problem

Julien Bayle's icon

I'm sending basic osc over udp message from one side (I'm sure of this part because I can trace it on the receiver computer with a basic eth sniffer)
one more thing, the message captured are basically osc/udp standard.

Max Patch
Copy patch and select New From Clipboard in Max.

and the patch on the other side is:

...
only that.

one more (so strange) thing:
instancing udpreceive 9999 in max seems to correctly open the port (netstat -ap UDP shows that) BUT the bind s for the 0.0.0.0 address.
nothing for 127. and for my 192.

Ad.'s icon

change the port maybe… plenty of issues with 9999 apparently…

Julien Bayle's icon

I tested a lot of ports.
when I change the port in the max object, the previous socket seems to be correctly killed (nothing appears in netstat)

all the same.

as I wrote, it is strange.
because 0.0.0.0 means, AFAIK, all the network interfaces.
so it should include listening on my 192.

Julien Bayle's icon

no firewall for sure.
I found the problem!
I had a DOUBLE persistent route to 0.0.0.0. probably my juniper network connect VPN ssl client :-(
now it is ok.
it was the problem :)
...thanks christopher!

that double route gave problem to bind the port correctly (curious)
I didn't dig much, because it wasn't the purpose :)