On 05/23/2014 02:39 PM, Alan Bartlett wrote:
On 23 May 2014 22:25, ToddAndMargo <[email protected]> wrote:
On 05/23/2014 02:08 PM, Alan Bartlett wrote:
On 23 May 2014 22:02, ToddAndMargo <[email protected]> wrote:
Hi All,
Is there some special meaning (like 127.0.0.1.) to
the following IP address?
224.0.0.251
Many thanks,
-T
It is an IP Multicast address.
host 224.0.0.251
will tell you a bit more.
Alan.
Hi Alan,
$ host 224.0.0.251
Host 251.0.0.224.in-addr.arpa. not found: 3(NXDOMAIN)
Not sure what I am suppose to find.
This is why I ask (VLC's doing):
kernel: Vlan-out Everything Else IN= OUT=eth0.5 SRC=192.168.254.10
DST=224.0.0.251 LEN=56 TOS=0x00 PREC=0x00 TTL=255 ID=0 DF PROTO=UDP SPT=5353
DPT=5353 LEN=36
eth0.5 is a virtual Ethernet too, not hooked to the Internet.
And port 3535 UDP?
$ grep -i 3535 /etc/services
ms-la 3535/tcp # MS-LA
ms-la 3535/udp # MS-LA
Thank you for the help,
-T
Oops. Typo time. Substitute "whois" for "host".
Sorry for the confusion.
Alan.
Hi Alan,
Really slick command. Love it! Thank you! :-)
I never would have learned this from Google.
-T
# yum --enablerepo=* whatprovides */whois
jwhois-4.0-19.el6.x86_64 : Internet whois/nicname client
Repo : sl
Matched from:
Filename : /usr/bin/whois
# yum install jwhois
# whois 224.0.0.251
Comment: Addresses starting with a number between 224
and 239 are used for IP multicast. IP multicast is a
technology for efficiently sending the same content
to multiple destinations. It is commonly used for
distributing financial information and video streams,
among other things.
Comment: A document describing the policies for
assigning multicast addresses can be found at:
http://datatracker.ietf.org/doc/rfc5771
