How to config basic NAT on linux

Published: 09 September 2017
on channel: Phuong Nguyen

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Tutorial how to config basic NAT on linux:
Configure computer A go to internet via computer B
Computer A: card VMNET3:
IP: 192.168.1.3/24

Computer B can access internet
card VMNET3:
IP: 192.168.1.2/24
card NAT
Begin Configure on computer B:

echo "1" /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o ens37 -j MASQUERADE
iptables -A FORWARD -i eno16777736 -o ens37 -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i eno16777736 -o ens37 -j ACCEPT

configure on computer A:

route add default gw 192.168.1.2
echo "nameserver 8.8.8.8" to file /etc/resolv.conf

Hope it can helpful for you

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