Category Archives: Hardware

Updating the firmware of the Planet GT-90x series

1) For example, let’s go to the web interface of the managed media converter Planet GT-90A. The standard ip-address is 192.168.0.100, the password and login is admin.
In the tab “System” -> “System Information” see that the current firmware V1.0b081017.

Continue reading “Updating the firmware of the Planet GT-90x series”

Configuring PIM on HP A5800 Switch

First make a copy of the configuration file on the tftp server:

backup startup-configuration to 192.168.1.100

To configure the PIM on the HP A5800 switch, connect to the switch via telnet and enter the following commands:

1) Enable the multicast routing switch and pim-sm in vlan 963 which comes from the provider.

system-view
multicast routing-enable
interface Vlan-interface 963
ip address 172.24.24.158 255.255.255.252
pim sm
quit

2) Turn on pim-sm and igmp in vlan 964 on which IPTV will be broadcast to the local network.

interface Vlan-interface 964
ip address 172.25.25.25 255.255.192.0
pim sm
igmp enable
quit

3) We’ll assign the static ip from which the multicast is broadcast.

pim
static-rp 10.0.200.200
quit

4) Add the route to ip from which the multicast is broadcast.

ip route-static 10.0.200.200 255.255.255.255 Vlan-interface963 172.24.24.157

5) Suppose that we accept multicast on vlan 963 tag.

interface Bridge-Aggregation1
port hybrid vlan 963 tagged

6) We will configure any free port for iptv verification and connect to it a computer for example with a playlist in the VLC player.

interface GigabitEthernet1/0/5
port access vlan 964

To test the health and diagnostics, you can use for example the following commands:

display pim interface
display pim interface verbose
display pim rp-info
display pim bsr-info
display pim neighbor
display pim routing-table
display igmp interface
display pim control-message counters
display pim claimed-route

Lenovo A3000 Hard Reset

On the test I will use Lenovo A3000-H.

Let’s get started. Turn off the tablet if it is possible, if not, we still press and hold the power key and the volume up key at the same time until the following menu appears:

Recovery Mode
Fastboot Mode
Normal Mode

Press the volume up key to select the desired mode, and go to the volume down key. In our case, let’s move on to Recovery Mode.

There was a robot, we put the power button on and another menu will appear. In it, on the contrary, by the sound reduction button we select the necessary operation, and the magnifications will be performed by it.
First we choose and execute “wipe cache partition“, later “wipe data/factory reset” and at the end we execute “reboot system now“, the device will reboot with standard settings and without user data.

Done.

Hard Reset Lenovo A390t

I will describe a few simple steps to perform a hard reset on the Lenovo A390t:

1) Turn off the device if it is turned on.
2) Press the volume button up and the power button simultaneously, wait for the Recovery menu to appear.
3) In the recovery menu, press the volume down/up button to highlight “Wipe data/factory reset” and select it by pressing the power button, then select “Wipe cache partion” in the same way.
4) When cleaning is complete, the recovery menu will appear again, in which we select “reboot system now“, after which the device will reboot.

Done.

HP Printers SNMP OID’s

On the test, I will use the HP LaserJet P2055dn printer.

Here is a list of tested OIDs for obtaining various SNMP information:
1.3.6.1.2.1.43.11.1.1.8.1.1 (Maximum number of copies of toner)
1.3.6.1.2.1.43.11.1.1.9.1.1 (Remaining number of copies of toner)
1.3.6.1.2.1.43.12.1.1.4.1.1 (Toner color)
1.3.6.1.2.1.43.10.2.1.4.1.1 (Number of pages printed)
1.3.6.1.2.1.43.5.1.1.17.1 (Serial number of the printer)

To see a list of all possible oid’s, you can run the command in Linux:

snmpwalk -v 1 -c public 192.168.24.112

You can check the specific oid with the command:

snmpget -v 2c -c public 192.168.24.112 1.3.6.1.2.1.43.11.1.1.9.1.1

Mikrotik SMB – file server configuration

I will use the Mikrotik RB951G-2HnD router as an example.

Connect the media to the USB router.
Let’s look at the status:

store disk print

Format it:

store disk format-drive 1

Reboot the router:

reboot

Add storage:

store add name=share disk=usb1 type=user-manager activate=yes comment="test"

Add share:

ip smb share add name=test max-sessions=15 directory=/test disabled=no comment="test share"

Example of disabling share:

ip smb share disable

Enabling smb:

enable smb

I will give examples of some commands:
ip smb print (view parameters)
ip smb set allow-guests yes/no (allows connection to guest users without entering a password, standard yes)
ip smb set comment TEXT (comment, standard MikrotikSMB)
ip smb set domain NAME (setting the name of the workgroup, standard MSHOME)
ip smb set enabled yes/no (SMB on/off, standard no)
ip smb set interfaces all/wlan1/bridge-local/… (installation of interfaces on which SMB will be started, standard all)

ip smb users add read-only=no name=LOGIN password=PASSWORD disabled=no (user creation)
ip smb users disable (disabling the user)
ip smb users enable (user activation)
ip smb users print (view the list of users)
ip smb users remove (deletion of the user)
ip smb users set read-only=no name=LOGIN password=PASSWORD (user change)

ip smb share enable
ip smb share print (view share list)
ip smb share remove
ip smb share set (changing the parameters of the share)

To get help, use the “?” character on the command line.
To go to the level above – “..”.

Example of configuring the firewall for smb:

add action=accept chain=input disabled=no dst-port=137-138 protocol=udp src-address-list=smb-allow
add action=accept chain=input disabled=no dst-port=137,139 protocol=tcp src-address-list=smb-allow
ip firewall address-list add address=1.1.1.1 disabled=no list=smb-allow

Official documentation:
wiki.mikrotik.com/wiki/Manual:IP/SMB
wiki.mikrotik.com/wiki/Manual:Store

You can also connect a hard drive to the router via the USB-SATA adapter.