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Re: (ASCEND) Problem upgrading Pipeline 25

Bottom line here - the P25 does not support NAT.

At 09:50 AM 9/2/98 , spadger@best.com wrote:
>
>Hi all.
>
>I've recently acquired a Pipeline 25-fx.
>
>I suspect that someone (not me, I /read/ the upgrade 
>instructions!!) has already attempted to update the
>software by skipping a version or two.
>
>The unit says that it's at version 4.6C.
>
>Any attempt to perform an NVRAMCLEAR, enter the hash 
>codes or tload an update results in a a series of 
>'P25NVRAM: flash erase failed E28F008SA' message,
>followed by a series of 'flash write failed' messages.
>
>The unit will not load the software via the Xmodem-1K
>protocol from the 'Esc[Esc-' key sequence either. It 
>gets quite a long way into the load, then errors, sometimes
>with a message that it couldn't write some location inside
>the flash memory area (400000-5FFFFF, 40FFFC is reported).
>
>A little experimentation found the debug jumper (P1 on
>this unit, in case anyone else is trying to find this info
>in the archives), but attempting to load the software via 
>the serial port doesn't work - it errors very quickly.
>
>The 'ef' (erase flash) command in the debug monitor also
>reports errors.
>
>
>Ascend Tech Support assured me yesterday afternoon that I should
>be able to perform a 'ef', ignore the error messages and perform
>a 'df' and successfully download the software. But then, they
>also blithely assured me that I could go straight from 4.6C
>to 6.0.9, which appears to be totally at odds with the information
>in the 5.0A release notes as well as various other places.
>
>
>Does it sound like this unit is toast? 
>
>
>Is it worth attempting to repair it?
>
>I wish to use ISDN with NAT on a small, unregistered LAN (4-5 
>machines). I _think_ from the release notes that the P25 /should/ 
>be able to do many-to-one NAT with a suitable release of the software, 
>but I'd appreciate someone confirming that this is possible, as 
>otherwise I'll concentrate on the IBM Waverunner ISA card I picked 
>up for $35 together with an 7845 NT-1 (the P25 has an S interface).
>
> 
>Any advice appreciated - I'm converting my analog modem line into an 
>ISDN line, and I'd prefer a minimum of downtime...
>
>
>Cheers,
>
>AS
>
>
>---
>Andy Sparrow	spadger@best.com
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> 

Kevin Smith			Ascend Communications...
Customer Satisfaction	...where Network Solutions never end.

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