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vlan
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vlan
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#!/bin/bash
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# Задание 4, Модуль 1 (HQ-RTR)
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# Настройка VLAN и маршрутизации (Router-on-a-Stick)
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# Задание 4 (Разные интерфейсы)
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[ $EUID -ne 0 ] && exit 1
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[ $EUID -ne 0 ] && echo "Требуется root" && exit 1
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# Физический интерфейс
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PHYS_IF="enp0s3"
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# VLAN и подсети
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VLAN_SRV="100"
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VLAN_CLI="200"
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VLAN_MGT="999"
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IP_SRV="192.168.3.1/26"
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IP_CLI="192.168.4.1/29"
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IP_MGT="192.168.1.1/28"
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echo "Настройка VLAN на интерфейсе $PHYS_IF..."
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# Загрузка модуля VLAN
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modprobe 8021q 2>/dev/null
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# Создание VLAN-интерфейсов
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for VID in $VLAN_SRV $VLAN_CLI $VLAN_MGT; do
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IF_NAME="${PHYS_IF}.${VID}"
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ip link del "$IF_NAME" 2>/dev/null
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ip link add link "$PHYS_IF" name "$IF_NAME" type vlan id "$VID"
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echo "VLAN $VID создан ($IF_NAME)"
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done
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# Настройка IP и активация
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ip addr add "$IP_SRV" dev "${enp0s8}.${VLAN_SRV}"
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ip addr add "$IP_CLI" dev "${enp0s9}.${VLAN_CLI}"
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ip addr add "$IP_MGT" dev "${enp0s10}.${VLAN_MGT}"
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ip link set "${enp0s8}.${VLAN_SRV}" up
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ip link set "${enp0s9}.${VLAN_CLI}" up
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ip link set "${enp0s10}.${VLAN_MGT}" up
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ip link set "$PHYS_IF" up
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# Включение маршрутизации
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echo 1 > /proc/sys/net/ipv4/ip_forward
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echo "Готово"
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# VLAN 100 -> enp0s8 (/27)
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ip addr flush dev enp0s8; ip addr add 192.168.100.1/27 dev enp0s8; ip link set enp0s8 up
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# Проверка
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ip -d link show type vlan
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# VLAN 200 -> enp0s9 (/28)
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ip addr flush dev enp0s9; ip addr add 192.168.200.1/28 dev enp0s9; ip link set enp0s9 up
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# VLAN 999 -> enp0s10 (/29)
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ip addr flush dev enp0s10; ip addr add 192.168.99.1/29 dev enp0s10; ip link set enp0s10 up
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# Отчет
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{ echo "Task 4 Report"; ip -br addr show enp0s8 enp0s9 enp0s10; cat /proc/sys/net/ipv4/ip_forward; } > Task4_Report.txt
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echo "Готово"
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