machines/content/posts/vidhyaalakshmi.md

title	date	draft	toc
Setup vidhyaalakshmi (Router)	2022-07-23T08:00:00+05:30	false	true

Basic setup

Set hostname

sudo hostnamectl set-hostname vidhyalakshmi

Set timezone

sudo timedatectl set-timezone Asia/Kolkata

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Networking setup

If you use PPPoE

This hasn't been tested... RTFM :)

INTERFACE=
USERNAME=
PASSWORD=

sudo nmcli connection add type pppoe ${INTERFACE} ${USERNAME} ${PASSWORD} 802-3-ethernet.mtu 1452

Static IP

IPv4

NETWORK_CONNECTION=$(nmcli -g name,device connection show | grep 'enp\|eth' | cut -f1 -d":" | head -n 1)

IPV4_DNS="1.1.1.2,1.0.0.2,8.8.8.8,8.8.4.4"
MY_IPV4_ADDR="" # 192.168.1.1/27
MY_IPV4_GTWY=""

sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv4.addresses "${MY_IPV4_ADDR}"
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv4.dns "${IPV4_DNS}"
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv4.gateway "${MY_IPV4_GTWY"
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv4.ignore-auto-dns yes
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv4.method manual

IPv6

## OPTIONAL
IPV6_DNS="2606:4700:4700:0:0:0:0:1112,2606:4700:4700:0:0:0:0:1002,2001:4860:4860:0:0:0:0:8888,2001:4860:4860:0:0:0:0:8844"
MY_IPV6_ADDR=""
MY_IPV6_GTWY=""

sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv6.addresses "${IPV6_DNS}"
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv6.dns "${MY_IPV6_ADDR}"
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv6.gateway "${MY_IPV6_GTWY}"
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv6.ignore-auto-dns yes
sudo nmcli connection modify "${NETWORK_CONNECTION}" ipv6.method manual

Make a bridge

Use eth1 NOT eth0 (or whatever the name ends up being as per freedesktop) as LAN

Enable IPv4 forwarding

sudo sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/g' /etc/sysctl.conf

Firewall config

sudo firewall-cmd --add-masquerade --permanent
sudo firewall-cmd --add-service=dns --add-service=dhcp --permanent
sudo firewall-cmd --reload

Reboot

systemctl reboot

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