>debian@beaglebone:/Distrib/Scripts$ sudo tcpdump -p -i eth0 host 224.0.0.1 -n
What does the -p do? On Wednesday, September 17, 2014 12:45:27 AM UTC-7, Mickae1 wrote: > > Well ..... > > I know google too, and I know this link . Thx for the answer . > > > My problem is that the beagle still receive the multicast packet (yes it > ignore all multicast packet), which is a problem for me when you are in a > network full of camera That love to send multicast packet ! > > I tried to disable multicast in the kernel, but it still receive multicast > packet. Do you know a solution to prevent this ? > > > Micka, > > On Tue, Sep 16, 2014 at 9:43 PM, Brandon I <brando...@gmail.com > <javascript:>> wrote: > >> First google result seems useful: >> >> >> http://stackoverflow.com/questions/16374670/why-i-can-not-disable-multicast-request >> >> >> On Tuesday, September 16, 2014 7:14:10 AM UTC-7, Mickae1 wrote: >>> >>> I've tried to deactivate the Multicast with : >>> >>> ifconfig eth0 -multicast >>> >>> But when i check with this command, I can still see : >>> >>> ip maddr show >>> >>> 2: eth0 >>> link 33:33:00:00:00:01 >>> link 01:00:5e:00:00:01 >>> link 33:33:ff:9a:05:07 >>> * inet 224.0.0.1* >>> inet6 ff02::1:ff9a:507 >>> inet6 ff02::1 >>> >>> >>> Which is not good for me ! >>> >>> >>> i've tried : >>> >>> debian@beaglebone:/Distrib/Scripts$ sudo ip -r maddr delete 224.0.0.1 >>> dev eth0 >>> >>> ioctl: No such file or directory >>> >>> >>> I also tried to ping 224.0.0.1 from an another device . >>> >>> And with the command tcpdump I can see that I'm receiving multicast >>> packet : >>> >>> debian@beaglebone:/Distrib/Scripts$ sudo tcpdump -p -i eth0 host >>> 224.0.0.1 -n >>> >>> tcpdump: verbose output suppressed, use -v or -vv for full protocol >>> decode >>> listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes >>> 16:09:28.679257 IP *190.190.167.1 > 224.0.0.1*: ICMP echo request, id >>> 1, seq 1913, length 40 >>> >>> >>> >>> >>> >>> Why ? I really don't know what to do about it, My idea is to deactivate >>> multicast in the kernel build config ..... Does it sounds good for you ? >>> >>> >>> >>> Thank you, >>> >>> >>> Micka. >>> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to beagleboard...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
