[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
>>> ---
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>>> Groups "BeagleBoard" group.
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>>> 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.
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--
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