If you read my previous article on how to Reset Linksys SRW Series Switches, then you know to reset our SRW2048 to factory default we used PuTTy to make a console connection. This method works great for switch management, however firmware updates on the SRW2048 will require the use of the XMODEM file transfer protocol. Unfortunately, PuTTy on Windows does not support XMODEM so in the past I have used HyperTerminal. HyperTerminal is a terminal emulator that came bundled with Windows up to XP. So, if you are running any Windows OS newer than XP what are your options, in comes Tera Term. With that said, lets move on to the firmware update. First, you will want to head over to the Cisco site here and download the new 1.2.2d firmware.
- Srw2024 Downloading Code Using Xmodem 1k Protocol. SRW2048, SRW2024, SRW2016, SRW248G4. Downloading using Xmodem 64. Can Putty be used to send serial data from the PC to. One of the fairly ancient protocols like XMODEM which are fairly simple.
- Xmodemtransmitter.c - transmitter side implementation /test. Testxmodem.c - Unity test file for xmodem.c module (use ceedling test:xmodem to run tests only in this source file) testxmodemreceiver.c - Unity test file for xmodemreceiver.c module (use ceedling test:xmodemreceiver to run tests only in this source file).
Downloading code using XMODEM. Download complete -Wrong file format. Writing aborted. Is there a different version of the firmware perhaps an older version available for download somewhere? Or is there something I am doing wrong? Any help would be greatly appreciated. We have 2 - srw2024's and 2- srw2016's. Issue only on the one with the fw. Linksys SRW2016, SRW2024, SRW2048, SRW224G4, SRW248G4 - page 91. The software is free for all its users. This General Public. The web management interface is best viewed using Internet Explorer 5.5 and up, with a resolution of 1024 x 768. In the current software version, certain pages cannot be viewed well using other browsers.
Default serial console settings for Linksys Switch SRW2048 (can be changed):
- Bits per second: 38400
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow Control: None
To update SRW2048 firmware:
- Connect to the console port using terminal emulation parameters (see above). In Tera Tern to edit the settings, navigate to setup > serial port…
- Once you have successfully established serial communication with the switch, reboot the switch by disconnecting and then reconnecting it’s power cable.
- The switch will begin it’s POST procedure as displayed in the serial terminal emulator. Be ready at the keyboard to press the Esc key.
- Watch for the following line to appear during the boot sequence. When you see it, immediately press the esc key;
- If you successfully interrupted the boot sequence, you will be prompted with a Startup Menu. Select option number 2.
- The terminal will display, “Write flash file name”. Enter “config” and then enter twice. Next, press esc to continue with the boot sequence.
- The switch will now do a warm reboot. Once it comes back up it will fail to load the firmware and ask you to “Download code using XMODEM”. Simply choose File > Transfer > XMODEM > Send and choose the firmware file you downloaded. Please be patient as this process can take some time.
- Reboot the switch and you are done. Disconnect and store the serial cable in a safe place for future use.
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