Thanks for the reply.
[email protected] wrote:
I want to run ushare (/usr/ports/ushare). This program sends
multicast packets to multicast address 239.255.255.250
The packets should go to the lan, so I add the route:
route add 224/4 -iface re0
In order to do the test I switch off the firewall (/etc/rc.d/pf stop)
I start the service, but no packets can be seen leaving the interface re0
with tcpdump.
Can you try to sniff with other machine in that lan?
Yes. Other machines can multicast without problem but nothing
multicast shows originating from the freebsd box.
Even If I ping a multicast address directly I can see no packets at all:
ping -I 192.168.2.1 239.255.255.250
I forgot mentioning that I can run this command from my linux box
and tcpdump from the same machine show the packets going to and fro.
Please, try to use mcastread like this
mcastread -v4 -s 192.168.2.1 re0 239.255.255.250 1337
mcastread -v4 -s 192.168.2.1 re0 239.255.255.250 1337
mcastread: trying 239.255.255.250
mcastread: using (S,G)=(192.168.2.1,239.255.255.250)
And stays there..
or mcastsend like this
mcastsend -i re0 239.255.255.250 1337
This results in an error:
mcastsend: setsockopt(IP_MULTICAST_IF): Can't assign requested address
Is there something else I can try?
Thanks again...
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