multicasting

Does the full tcpip stack support multicasting now in patch B?

Dean Douthat <ddouthat@faac.com> wrote:
: Does the full tcpip stack support multicasting now in patch B?

Yes. Start your driver with ‘multicast=1’:

slay io-net

io-net -d multicast=1 -ptcpip

ifconfig en0 <ip_addr>

route add default <gateway_ip_addr>

After the above, ‘ifconfig en0’ should show the MCAST flag set.

-seanb

I added ‘multicast=1’ when starting the el900 driver and now I get an
error 249 Can’t assign requested address from setsockopt(). I am using
address 225.0.0.37. This address is in the correct range isn’t it?

jim f.

Sean Boudreau wrote:

Dean Douthat <> ddouthat@faac.com> > wrote:
: Does the full tcpip stack support multicasting now in patch B?

Yes. Start your driver with ‘multicast=1’:

slay io-net

io-net -d multicast=1 -ptcpip

ifconfig en0 <ip_addr

route add default <gateway_ip_addr

After the above, ‘ifconfig en0’ should show the MCAST flag set.

-seanb

Also note that this has/will change in the 6.1 release. All drivers that
have multicast support will have it enabled by default and will honour
the IFF_MULTICAST flags (from ifconfig and getsockopt). You will be able
to force the device to NOT use multicast by giving the single command
line option “nomulticast” like this…

io-net -d tulip nomulticast -p tcpip

chris


James J. Fairchild <jjf@airmail.net> wrote:

I added ‘multicast=1’ when starting the el900 driver and now I get an
error 249 Can’t assign requested address from setsockopt(). I am using
address 225.0.0.37. This address is in the correct range isn’t it?

jim f.

Sean Boudreau wrote:

Dean Douthat <> ddouthat@faac.com> > wrote:
: Does the full tcpip stack support multicasting now in patch B?

Yes. Start your driver with ‘multicast=1’:

slay io-net

io-net -d multicast=1 -ptcpip

ifconfig en0 <ip_addr

route add default <gateway_ip_addr

After the above, ‘ifconfig en0’ should show the MCAST flag set.

-seanb

cdm@qnx.com > “The faster I go, the behinder I get.”

Chris McKillop – Lewis Carroll –
Software Engineer, QSSL
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<