Hello, I went through this stuff a couple of weeks ago.. here is what I learned. On Fri, 1 Jun 2001 09:04:48 -0500 (CDT) "Phil Mendelsohn" <mend0070 at tc.umn.edu> wrote: > sorry for updating myself -- > > Qwest says the 675 will accept Xmodem over the serial port, so minicom > should be sufficient to download the software. Also, be careful that you > don't get the wrong software -- make sure CAP or DMT agrees with your > modem. First, while Cisco and Qwest both claim that Xmodem works over the serial port, I was not able to get it working with Minicom, using the same settings that normally allow me to operate the 675's serial console. Just errored out every time I tried, so I gave up on it. Second, the CAP/DMT firmware is *not* related to the CBOS, so a change of CBOS version is irrelevant to this. CAP/DMT is seperate firmware. The easy & fast way to upgrade the CBOS (the latest version I found was 2.4.1, so I used it) is via tftp. The drill goes like this: (IMPORTANT NOTE: I assume that the 675 is ip 10.0.0.1, and the client used to send the upgrade is 10.0.0.2. Adjust as required for your network.) Log into CBOS over the serial cable, enter enable mode. #set tftp enabled #set tftp remote 10.0.0.2 (this may be optional, but I set it the address of my desktop. This forces the 675 tftp to only accept tftp connects from a single host (security)). Now, from the client machine 10.0.0.2, and assuming you have downloaded CBOS 2.4.1 as filename 'nsrouter.c675.2.4.1.bin': $mv nsrouter.c675.2.4.1.bin nsrouter.c675.2.4.1.bin.hr $tftp 10.0.0.1 69 tftp>mode binary tftp>put nsrouter.c675.2.4.1.bin.hr tftp>quit Back to the CBOS serial console on more time: #set tftp disabled #reboot The modem should reboot, check a bunch of checksums, *then* it flashes the EEPROM, reboots again and wakes up with the new version. You shouldn't have to touch any of your NVRAM settings, but if they are ugly, log into the serial console, enter enable mode and do: #set nvram erase #write #reboot Then you may configure the unit as if factory-fresh; ppp passwords and all... -.bill.layer.- -.those who are talking don't know, and those who know aren't talking.- -.frogtown.- -.minnesota.- -.u.s.a.-