Re: [gentoo-user] IGMP, what is this?

[Dale <rdalek1967@gmail.com>]

Patric Schmitz wrote:
> On Fri, 21 Nov 2008 06:50:04 -0600
> Dale <rdalek1967@gmail.com> wrote:
>
>   
>> Hi,
>>
>> I noticed a little modem activity while I was idle.  I wasn't sure
>> what it was so I used wireshark to capture and exported it.  I did a
>> google search and even read the wikipedia thing but I'm still not
>> sure what to make of this.  Here is what I got from wireshark:
>>
>> <<< SNOP >>
>>
>> Ideas?  Thanks
>>     
>
> Hmm it looks like an IGMP multicast group membership
> query. I have seen the (SAP) service discovery function of VLC
> broadcasting those (or something similar, i might be mixing up things
> here).
>
> On http://www.networksorcery.com/enp/protocol/igmp.htm i found:
>
> "0x11   Group Membership Query, general or group-specific. General
> Query is used to learn which groups have members on an attached
> network. Group-Specific Query is used to learn if a particular group
> has any members on an attached network. These two messages are
> differentiated by the Group Address."
>
> I hope this is of any help,
> Patric
>
>
>   

I was trying to figure out if someone was snooping in on my connection
or something.  I got a new ISP and I sort of think it is something their
network does.  Since I do my banking and credit card on this thing, I
was just wanting to make sure I was safe to do that.  I know they are
encrypted but still want to make sure.

Dale

:-)  :-)