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The ZyXEL XGS1250-12 Switch is a 11 + 1 port multi-GBit switch with 8 x 1000BaseT, 3 x 1000/2500/5000/10000BaseT Ethernet ports and 1 SFP+ module slot. Hardware: - RTL9302B SoC - Macronix MX25L12833F (16MB flash) - Nanja NT5CC64M16GP-1 (128MB DDR3 SDRAM) - RTL8231 GPIO extender to control the port LEDs - RTL8218D 8x Gigabit PHY - Aquantia AQR113c 1/2.5/5/10 Gigabit PHYs - SFP+ 10GBit slot Power is supplied via a 12V 2A standard barrel connector. At the right side behind the grid is UART serial connector. A Serial header can be connected to from the outside of the switch trough the airvents with a standard 2.54mm header. Pins are from top to bottom Vcc(3.3V), TX, RX and GND. Serial connection is via 115200 baud, 8N1. A reset button is accessble through a hole in the front panel At the time of this commit, all ethernet ports work under OpenWRT, including the various NBaseT modes, however the 10GBit SFP+ slot is not supported. Installation -------------- * Connect serial as per the layout above. Connection parameters: 115200 8N1. * Navigate to 'Management' in the OEM web interface and click on 'Firmware upgrade' to the left. * Upload the OpenWrt initramfs image, and wait till the switch reboots. * Connect to the device through serial and change the U-boot boot command. > fw_setenv bootcmd 'rtk network on; boota' * Reboot, scp the sysupgrade image to /tmp, verify the checksum and flash it: > sysupgrade /tmp/openwrt-realtek-rtl930x-zyxel_xgs1250-12-squashfs-sysupgrade.bin * Upon reboot, you have a functional OpenWrt installation. Leave the bootcmd value as is - without 'rtk network on' the switch will fail to initialise the network. Web recovery ------------ The XGS1250-12 has a handy web recovery that will load when U-boot does not find a bootable kernel. In case you would like to trigger the web recovery manually, partially overwrite the firmware partition with some zeroes: # dd if=/dev/zero of=/dev/mtd5 bs=1M count=2 If you have serial connected you'll see U-boot will start the web recovery and print it's listening on 192.168.1.1, but by default it seems to be on the OEM default IP for the switch - 192.168.1.3. The web recovery only listens on HTTP (80) and *not* on 443 (HTTPS) unlike the web UI. Return to stock --------------- You can flash the ZyXEL firmware images to return to stock: # sysupgrade -F -n XGS1250-12_Firmware_V1.00(ABWE.1)C0.bix Signed-off-by: Birger Koblitz <git@birger-koblitz.de> |
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