AT&T U-Verse Data Setup Convention

[keiths at neilltech.com (Keith Stokes)]

I?m wondering if some can share their experiences or maybe there?s an AT&T person here who can confirm policy.

I work for SaaS provider who requires a source IP to access our system to businesses.

Normally we tell the customer to request a ?Static IP? from their provider. That term makes sense to most ISPs.

However, we?ve recently worked with an AT&T higher-up tech who told us that every U-Verse modem is locked to an address even when set to DHCP and will not change unless the unit is changed. Ordering a ?Static IP? from them means your devices will individually get public addresses, which isn?t a requirement for us, isn?t quite as easy to add multiple devices and costs our customers more money.

Here are my questions:

1. Is it really accurate that the customer?s address is tied to the modem/router?

2. For my curiosity, is this done through a DHCP reservation or is there a hard coded entry somewhere?

3. Do all U-Verse modem/routers behave the same way? This particular unit was a Motorola but the friends I?ve seen with U-Verse use a Cisco unit.

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Keith Stokes