How to permanently enable IPv4 forwarding in Alpine Linux

This simple command will permanently enable IPv4 forwarding on Alpine Linux. Run this as root:

enable_ipv4_forwarding.sh

echo net.ipv4.ip_forward=1 | tee -a /etc/sysctl.conf && sysctl -p

echo net.ipv4.ip_forward=1 | tee -a /etc/sysctl.conf && sysctl -p

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