Author: admin

First install SNMP package:

sudo apt-get install snmp

To use SNMP in PHP install php-snmp extention:

sudo apt-get install -y php-snmp

Get SNMP information from router user command:

snmpwalk -v2c -Cc -c public 192.168.1.1 > out.txt

This command will get all SNMP information from router 192.168.1.1 and save it into file out.txt

Now let’s create file index.php and write code that will get all MAC addresses from BDCOM P3310 OLT. To get all MAC addresses use OID: iso.3.6.1.2.1.17.7.1.2.2.1.1. In PHP file create function SnmpGet:

function SnmpGet($host, $community, $object_id){
    exec("snmpwalk  -v2c -Cc -c ".$community." ".$host." ".$object_id, $snmpWalkReturn);
    foreach($snmpWalkReturn as $value){
            $oid = explode("=", $value);
            $walk[trim($oid[0])] = trim($oid[1]);
    }
    return $walk;
}

Put SNMP result in variable $MacResult:

$MacResult = snmprealwalk2($hostname, $community, "iso.3.6.1.2.1.17.7.1.2.2.1.1");

In cycle foreach go through all elements and remove unnecessary data:

if(count($MacResult)){
    foreach($MacResult as $Item => $Value)
    {
        $Oid = str_replace("iso.3.6.1.2.1.17.7.1.2.2.1.1.", "", $Item);
        $Mac = str_replace("Hex-STRING: ", "", $Value);

        if(!strpos($Mac, "STRING:")){
            echo $Mac.' | '.$Oid;
        }
    }
}

Similarly get EPON interface id from OID: iso.3.6.1.2.1.17.7.1.2.2.1.2

1 .Download Arch Linux ISO from official site: https://www.archlinux.org/download/

2. Create Live USB of Arch Linux using Etcher GUI tool:

Or You can use Rufus in Windows:

Once you have created a liveUSB for Arch Linux, restart your PC and boot from USB. While booting press Delete, F2, F10 or F12 key to go into boot menu.

3. Create partition.

Use the command fdisk to show and create partitions on your system:

fdisk -l

If you have old partitions on your disk, you can delete them all using command:

wipefs -a /dev/sda

Be careful! This command destroy all data on your hard drive.

Select the disk you are going to partition:

fdisk /dev/sda

Enter n – to create new partition, then program ask you to choose a disk number, enter 1, and then enter first and last block of dist (press Enter for default).

4. Create root partition. To format root partition use command:

mkfs.ext4 /dev/sda1

5. Install Arch Linux

mount /dev/sda1 /mnt

Use pacstrap script to install all necessary packages:

pacstrap /mnt base linux linux-firmware vim nano mc

Generate a fstab file to define how disk partition, block devices or remote file systems are mounted into the filesystem.

genfstab -U /mnt >> /mnt/etc/fstab

Use arch-chroot and set the mounted disk as root. Now Arch Linux is installed on the disk.

arch-chroot /mnt

6. Setting up timezone

timedatectl list-timezones
timedatectl set-timezone Europe/Kiev

7. Setting up Locale

locale-gen
echo LANG=en_US.UTF-8 > /etc/locale.conf
export LANG=en_US.UTF-8

8. Network configuration

echo name > /etc/hostname
touch /etc/hosts