[beagleboard] Re: BBB & MultiCast
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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Re: BBB & MultiCast
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 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+unsubscr...@googlegroups.com. > 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.
Re: [beagleboard] Re: BBB & MultiCast
>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 > 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 . >> 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.
Re: [beagleboard] Re: BBB & MultiCast
>From tcpdump man page: *-p**--no-promiscuous-mode**Don't* put the interface into promiscuous mode. Note that the interface might be in promiscuous mode for some other reason; hence, `-p' cannot be used as an abbreviation for `ether host {local-hw-addr} or ether broadcast'. DonWB5EKU On Wed, Sep 17, 2014 at 3:59 PM, Brandon I wrote: > >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 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. >>> 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. > -- 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.