Re: Cisco ATA-188

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>
>Message: 1
>Date: Mon, 18 Oct 2004 18:59:36 +0200
>From: Magnus Johansson <[email protected]>
>To: [email protected]
>Subject: [gpl] Cisco ATA-188
>
>Hi!
>
>Anyone got a Cisco analog telephone adaptor running with their
>Smoothwall? It's supposed to be connected first and then a cable from it
>to the Smoothwall red interface, but the firewall can't/won't bring up
>the red interface. The ATA-188 uses DHCP to be configured and I haven't
>been able to figure out if it got it's own DHCP server or forwards the
>DHCP information it got. I tried putting it behind the firewall and use
>my own DHCP server, but I think it needs to know the WAN address and I
>can't change that (plus it's a dynamic connection and I couldn't figure
>out what ports to forward) as I don't have the password for the ATA-188.
>(Yes, it could be reset but I'd loose some information I need then.) The
>LEDs look ok and actually blinks so I think the cables are ok. I'm
>thinking Smoothwall don't accept the DHCP data it gets as wrong or not
>complete or... Without the ATA-188 Smoothwall runs nicely, as always.
>I've mailed the ISP support, but I expect them to just respond that they
>only support Windows machines.
>
>--__--__--

	The ATA is an older model which does not work well behind a 
NAT. You can set it up in pass-through mode so it looks like:

Internet -> Modem -> ATA -> SW

where you will be requesting 2 IP's from your ISP. Otherwise, the 
adapter will provide a DHCP address to the LAN side of the adapter 
(which is your SW RED/WAN interface). By default, if you connect it 
to your modem, then your SW to it, you should configure your SW's 
RED/WAN to request a DHCP address. The adapter is defaulted to 
request a DHCP address on its WAN interface from your ISP. If you can 
change it out for the Motoroloa adapter that is widely used now, you 
have a few more options.
	Now the main benefit from the Motorola adapter is the ability 
to put it behind your SW/NAT environment. Then, with the QoS 1.8 
module you can regain the purported QoS features that the VoIP 
adapters use for your call quality. The ATA adapter "might" work in a 
NAT, but all information about it says it is temperamental and lacks 
the features required (as seen from your testing).

Drew (a.k.a. NetWhiz)
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   Drew S. Dupont		           dsdupont-cRNsNxxcKCstbC/[email protected]
   AIM: NetWhizOne		           FWD #: 271144
   YIM: dsdupont
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