asterisk users - Jun 2003 - Working: TFTPd for NAT'd Cisco 7960 and ATA-186

For anyone who is interested, I have a working tftpd (modified wvtftpd)
capable of serving configuration, dialplans, and ringtones to Cisco
7960/7940 and ATA-186 devices that are located behind NAT firewalls. As
TFTP is not a very firewall/NAT friendly protocol, I had to break some
rules to get it to work with these cisco devices. It might cause
problems for other TFTP clients, but it works with the cisco's which I
needed.. Your tftp server can also be located behind a NAT or firewall
if you forward or open UDP/69 to the internal machine.

If anybody else needs to do this, just let me know. I am still trying to
get rid of some bizarre delays, but I will send you a diff when It's all
said and done.

Also, I am looking for the Cisco's 'cfgfmt.exe' tool or compatible
utility that is used to create the binary TFTP'able configuration files
for the ATA-186. I can't seem to find it anywhere on their site -- it's
not with the firmware downloads or anything! Can anyone help?

John

Hi John,

I have done this too for Cisco 79x0 with Solar Winds TFTP server, serving
firmware, default configuration and specific configuration for each phone.
Do you have some Ring configuration files to be used with those phones?

Thanks,
Dan

----- Original Message ----- 
From: "John Laur" <johnl@blurbco.com>
To: <asterisk-users@lists.digium.com>
Sent: Saturday, June 28, 2003 4:59 AM
Subject: [Asterisk-Users] Working: TFTPd for NAT'd Cisco 7960 and ATA-186

> For anyone who is interested, I have a working tftpd (modified wvtftpd)
> capable of serving configuration, dialplans, and ringtones to Cisco
> 7960/7940 and ATA-186 devices that are located behind NAT firewalls. As
> TFTP is not a very firewall/NAT friendly protocol, I had to break some
> rules to get it to work with these cisco devices. It might cause
> problems for other TFTP clients, but it works with the cisco's which I
> needed.. Your tftp server can also be located behind a NAT or firewall
> if you forward or open UDP/69 to the internal machine.
>
> If anybody else needs to do this, just let me know. I am still trying to
> get rid of some bizarre delays, but I will send you a diff when It's
all
> said and done.
>
> Also, I am looking for the Cisco's 'cfgfmt.exe' tool or
compatible
> utility that is used to create the binary TFTP'able configuration files
> for the ATA-186. I can't seem to find it anywhere on their site --
it's
> not with the firmware downloads or anything! Can anyone help?
>
> John
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
>

Hmm... tftpd works fine for me through NATs and firewalls.  We're 
using "stock" tftpd on OpenBSD and Solaris 8 to serve files to
7960's
behind all sorts of firewalls and NATs.

JT


>For anyone who is interested, I have a working tftpd (modified wvtftpd)
>capable of serving configuration, dialplans, and ringtones to Cisco
>7960/7940 and ATA-186 devices that are located behind NAT firewalls. As
>TFTP is not a very firewall/NAT friendly protocol, I had to break some
>rules to get it to work with these cisco devices. It might cause
>problems for other TFTP clients, but it works with the cisco's which I
>needed.. Your tftp server can also be located behind a NAT or firewall
>if you forward or open UDP/69 to the internal machine.
>
>If anybody else needs to do this, just let me know. I am still trying to
>get rid of some bizarre delays, but I will send you a diff when It's all
>said and done.
>
>Also, I am looking for the Cisco's 'cfgfmt.exe' tool or
compatible
>utility that is used to create the binary TFTP'able configuration files
>for the ATA-186. I can't seem to find it anywhere on their site --
it's
>not with the firmware downloads or anything! Can anyone help?
>
>John
>
>_______________________________________________
>Asterisk-Users mailing list
>Asterisk-Users@lists.digium.com
>http://lists.digium.com/mailman/listinfo/asterisk-users