KBT/Using NAT on Ubuntu
From AptivateOER
< KBT
- Contents
- Contents
- BMO Training KENET
- Timetable
- Training Objectives
- Documentation
- Appendix
- Participants
[edit] 1 Source NAT
- The packets originates from a private network and its destined to a public network through a gateway.
- When leaving the gateway, its Private IP is changed to the gateways Public IP address
- Example of a SNAT rule
iptables -t nat -A POSTROUTING -p icmp --icmp-type echo-request -j MASQUERADE
[edit] 2 Destination NAT
- Using DNAT for all protocols (and ports) on one IP
iptables -t nat -A PREROUTING -d 10.1.1.83 -j DNAT --to-destination 41.204.160.3
- Using DNAT for a single port
iptables -t nat -A PREROUTING -p tcp -d 10.1.1.83 --dport 80 -j DNAT --to-destination 41.204.160.3
