Hi,
the setsockopt(...,IP_MULTICAST_IF,...) is called, if you pass an
interface to the
ClusterWindow.
e.g. clusterWindow->setInterface("192.168.0.1")
otherwise the default gateway is used. I think this is a good default.
Marcus
Aidan Delaney wrote:
> Hey all,
> I've been experiencing some strange network issues with OpenSG on a
> client with multiple NICs. The network setup looks as follows
> eth0 (192.168.0.1) - the private cluster network
> eth2 (foo.bar.baz.blah) - the Internet facing NIC
>
> running
> [EMAIL PROTECTED]:~/OpenSG/Tutorials$ strace ./13ClusterClient -m mercury -i
> 192.168.0.1 2>&1 | grep sockopt
> setsockopt(9, SOL_SOCKET, SO_LINGER, {onoff=1, linger=1}, 8) = 0
> setsockopt(9, SOL_SOCKET, SO_REUSEADDR, [-7319998661918719], 4) = 0
> setsockopt(10, SOL_SOCKET, SO_BROADCAST, [33277200450977793], 4) = 0
> setsockopt(10, SOL_IP, IP_MULTICAST_TTL, "\2", 1) = 0
> setsockopt(10, SOL_SOCKET, SO_RCVBUF, [-7318349394214912], 4) = 0
> getsockopt(10, SOL_SOCKET, SO_RCVBUF, [-7318349394214914], [4]) = 0
> setsockopt(11, SOL_SOCKET, SO_BROADCAST, [34856855062708225], 4) = 0
> setsockopt(11, SOL_IP, IP_MULTICAST_TTL, "\2", 1) = 0
> setsockopt(11, SOL_IP, IP_MULTICAST_TTL, "\10", 1) = 0
>
> you can see that at no stage does OpenSG call
> setsockopt(...,IP_MULTICAST_IF,...) which AFAIK is required in order
> to multicast out of eth0. As it is the multicast UDP packets leave
> eth2 which is the default route on the machine. I have to remove eth2
> and explicitly set a default route for all packets through eth0 in
> order to get multicast working.
>
> It's possible (read probable) that I'm doing something wrong, but I'm
> not sure what. Any advice on this would be appreciated.
>
> Thanks,
> --
> Aidan
>
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
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Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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