asterisk users - Mar 2008 - Finding iaxy's (iaxies?)

According to http://kb.digium.com/entry/12/

 	The Iaxy will respond to pings on port 9999. You can ping your
 	broadcast IP on your network and listen with tcpdump on your
 	network on port 9999 which will show the Iaxy responding and what
 	IP address it is coming from.

 	Ex.
 	ping 192.168.1.255
 	tcpdump -i eth0 udp port 9999"

Before I get my karma whacked again, does this work for anybody?

1) Shouldn't "ping 192.168.1.255" be "ping -b
192.168.1.255"

2) Aren't pings ICMP and thus "invisible" when tcpdump is looking
for UDP?

3) How do you set a "port" on an ICMP ping?

4) How do YOU find an Iaxy on your network?

Thanks in advance,
------------------------------------------------------------------------
Steve Edwards      sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                             Fax: +1-760-731-3000

I haven't used any Iaxy but from the example it looks like once you ping the
ip of the Iaxy it will responde with a udp packet from port 9999
So you don't actually ping the 9999 port, but again as I said never used it
so I could be wrong

Stelios S. Koroneos

Digital OPSiS - Embedded Intelligence
http://www.digital-opsis.com
 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Steve Edwards
> Sent: Saturday, March 29, 2008 4:01 AM
> To: Asterisk Users Mailing List
> Subject: [asterisk-users] Finding iaxy's (iaxies?)
> 
> According to http://kb.digium.com/entry/12/
> 
>  	The Iaxy will respond to pings on port 9999. You can ping your
>  	broadcast IP on your network and listen with tcpdump on your
>  	network on port 9999 which will show the Iaxy 
> responding and what
>  	IP address it is coming from.
> 
>  	Ex.
>  	ping 192.168.1.255
>  	tcpdump -i eth0 udp port 9999"
> 
> Before I get my karma whacked again, does this work for anybody?
> 
> 1) Shouldn't "ping 192.168.1.255" be "ping -b
192.168.1.255"
> 
> 2) Aren't pings ICMP and thus "invisible" when tcpdump is 
> looking for UDP?
> 
> 3) How do you set a "port" on an ICMP ping?
> 
> 4) How do YOU find an Iaxy on your network?
> 
> Thanks in advance,
> --------------------------------------------------------------
> ----------
> Steve Edwards      sedwards at sedwards.com      Voice: 
> +1-760-468-3867 PST
> Newline                                             Fax: 
> +1-760-731-3000
> 
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Steve Edwards wrote:
> 4) How do YOU find an Iaxy on your network?
>   
I was most easily able to find them by watching my DHCP server logs.

You're right about the -b switch to ping, that's required.

Moj