[Spread-users] icmptype ?

[Ryan Caudy]

I'm not sure the answer to your question.  As far as I know, Spread 
doesn't send any ICMP packets.  However, your problems may be due to 
only opening a single port (in this case, the port Spread multicasts on, 
I assume).  Spread does use additional ports... I haven't investigated 
which ones (although I will if you still need this help tomorrow night), 
but in my tests 100 was always enough.

--Ryan

David Carroll wrote:

> Hi Guys,
> 
> Me again, and no I haven't got spread running yet. Still getting;
> 
> 
>>[Thu 13 Nov 2003 16:36:29] DL_send: sent a message of -1 bytes to
> 
> (10.2.3.255,4803) on channel 5
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:30] DL_send: delaying after failure in send to
> 
> 10.2.3.255, ret is -1
> 
>>[Thu 13 Nov 2003 16:36:31] DL_send: element[0]: 32 bytes
>>[Thu 13 Nov 2003 16:36:31] DL_send: element[1]: 8 bytes
>>[Thu 13 Nov 2003 16:36:31] DL_send: element[2]: 12 bytes
>>[Thu 13 Nov 2003 16:36:31] DL_send: error: Permission denied
> 
> 
> I think this is to do with the firewall - still. I have opened 4803 for tcp
> AND udp (I believe spread uses udp, can someone confirm ?). But icmptype is
> blocked (except echo 8+3) through my firewalls, so here is the question,
> what icmptype do I need open to send and receive spread traffic (if indeed I
> do ?)? .
> 
> Kindest Regards,
> 
> David
> 
> 
> 
> _______________________________________________
> Spread-users mailing list
> Spread-users at lists.spread.org
> http://lists.spread.org/mailman/listinfo/spread-users
> 

-- 
Ryan W. Caudy
Center for Networking and Distributed Systems
Department of Computer Science
Johns Hopkins University