I had to restore the D-Link DIR-300NRU/B7 on the inoperative router, which stopped working after turning off the power at the time of the firmware update. In fact, some other D-Link routers can be restored using the method.
Continue reading “Restoring D-Link DIR-300NRU/B7 Router”Category Archives: Hardware
D-Link DIR-300 Firmware Update
In the test I will update the firmware of the D-Link DIR-300 B5 v.1.2.94 router to 2.15.12.
In my case, after updating the firmware, the settings were reset to the factory settings and new functions were added, for example, when you select a Wi-Fi channel, you can see the noise levels of channels by other devices.
ACL Examples for D-Link Switches
In this article I will give some examples of blocking IP addresses, MAC addresses, DHCP packets from DHCP servers, etc.
Continue reading “ACL Examples for D-Link Switches”Configuring SNMP Traps on Linux
Here is an example of installing SNMP and catching SNMP traps in Ubuntu Server.
Continue reading “Configuring SNMP Traps on Linux”Solving the “router was rebooted without proper shutdown” error in MikroTik
They asked to find out somehow the reason for the frequent reboot of the MikroTik router.
When logging in the device, an error was constantly displayed in the logs:
How to catch broadcast flood on D-Link switches
I noticed once in one common network jumps in broadcast traffic, I was able to detect naturally quickly, since I had previously set up monitoring via graphs and triggers using Zabbix. I looked at the graphs of broadcast traffic from the ports of the main switch, from here it was clear where he started to go, and so we determined the chain to the client switch and port. In the Zabbix monitoring system, it is convenient to configure triggers that trigger when the limit of broadcast traffic is exceeded and report this on the screen, email to the administrator, etc.
Continue reading “How to catch broadcast flood on D-Link switches”Configuring Foxgate S6208
On the test I will configure the Foxgate S6208-S1 (R2.0) switch.
Continue reading “Configuring Foxgate S6208”Configuring Link Aggregation on HP 5800
I will give an example of aggregation of two links into one on the HP 5800, in order to increase throughput. 1 Gbit/s + 1Gbit/s = 2Gbit/s. In the test on VLAN 400 without a tag, the Internet comes, and on a VLAN with tags other services.
Continue reading “Configuring Link Aggregation on HP 5800”Hard reset LG L Bello D335
First, I will describe how to reset the settings through the phone menu:
Continue reading “Hard reset LG L Bello D335”Backing up the BDCOM P3310 configuration
I wrote a script for automatic backup of the BDCOM P3310C-2AC EPON configuration.
Continue reading “Backing up the BDCOM P3310 configuration”