All things related to multicast

[Michael Hare <>]

Someone privately suggested that I replace the underscore in my Name to a 
hyphen.  No change in behavior.

I am using Redhat 7.3.

[root@farnsworth
 init.d]#  /usr/java/bin/java -version
java version "1.4.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0_01-b03)
Java HotSpot(TM) Client VM (build 1.4.0_01-b03, mixed mode)

At 09:59 AM 8/21/2002 -0500, Tony Rimovsky wrote:
> It is working for me:
> /usr/local/jdk/bin/java Beacon -group 233.2.171.1 -port 56464 -server 
> beaconserver.accessgrid.org -serverport 9997 -name tony-test -ttl 127
>
> 09:56:44.429725 farmer.ncsa.uiuc.edu > beacon-mcast.accessgrid.org: 
> farmer.ncsa.uiuc.edu > beacon-mcast.accessgrid.org: igmp v2 report 
> beacon-mcast.accessgrid.org [ttl 1] (id 7385, bad cksum 0!, optlen=4 RA)
> 09:56:44.577408 farmer.ncsa.uiuc.edu.4771 > 
> beacon-mcast.accessgrid.org.56464:  udp 57 (ttl 127, id 7396, bad cksum 0!)
>
> What OS and jvm are you using?
>
>
> On Wed, Aug 21, 2002 at 09:45:01AM -0500, Michael Hare wrote:
> > Sorry if it's off topic but..
> >
> > Anyone have issues with the multicast beacon client not respecting TTL on
> > outbound packets?  According to the docs, I believe there should be a
> > default TTL of 127.  This doesn't seem to be the case, and using -ttl 127
> > on the command line didn't help either.
> >
> > Redhat 7.3
> >
> > cd /usr/local/beaconclient; /usr/java/bin/java Beacon -group 233.2.171.1
> > -port 56464 -server beaconserver.accessgrid.org  -serverport 9997 -name
> > WiscNet_Madison -ttl 127
> >
> > 09:43:55.229320 farnsworth.wiscnet.net.32883 >
> > beacon-mcast.accessgrid.org.56464:  udp 69 (DF) [ttl 1]
> > 09:43:55.339329 farnsworth.wiscnet.net.32883 >
> > beacon-mcast.accessgrid.org.56464:  udp 69 (DF) [ttl 1]
> > 09:43:55.449321 farnsworth.wiscnet.net.32883 >
> > beacon-mcast.accessgrid.org.56464:  udp 69 (DF) [ttl 1]
> > 09:43:55.559329 farnsworth.wiscnet.net.32883 >
> > beacon-mcast.accessgrid.org.56464:  udp 69 (DF) [ttl 1]
> >
> > -Michael
> >
> > /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
> > Michael Hare
> > UW-Madison/WiscNet Network Engineering
> > My phone: 608-262-5236
> > 24-Hour NOC: 608-263-4188
> > WiscNet: 608-265-6761

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
Michael Hare
UW-Madison/WiscNet Network Engineering
My phone: 608-262-5236
24-Hour NOC: 608-263-4188
WiscNet: 608-265-6761