Clarification for iptables

[John DeDourek]

Vikram Goyal wrote:

>Hello,
>
>Inbound IN=eth0 OUT= MAC= SRC=192.168.1.2 DST=239.255.255.250 LEN=161 TOS=0x00 PREC=0x00 TT L=1 ID=0 DF PROTO=UDP SPT=1900 DPT=1900 LEN=141
>
>This is kernel message in /var/log/messages which I wanted to ask about.
>
>I think this is an inbound request but ip-addr in SRC is same as mine
>which I get from dsl-router through dhcp.
>
>Can any one explain this to me please and also if anything needs to be
>done about it.
>
>Thanks!
>  
>
The destination address is 239.255.255.250.  That's a multicast address.
So it is sent to all systems on the LAN when you send it.  That includes
your system as well under certain circumstances.