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Network Address Translation example using NFF-Go

What it is

NAT example is a fully functional NAT (network address translation) program written using NFF-Go framework. It has support for IPv4 and IPv6, ARP, ND, ICMP, ICMPv6, DHCP and DHCPv6 protocols with remote control over GRPC.

Building

To build NAT application you need Go tools. Get them from Golang site. Go should be 1.11.5 or newer.

First, you need DPDK. Usually NAT application uses DPDK from NFF-Go framework. If you want to go this way, check out NFF-Go framework from NFF-Go framework and run make in it. This will also build DPDK. After that execute source env.sh script to initialize necessary variables to build native code.

If you have DPDK already built in some other location, change env.sh script to point RTE_SDK variable to it so that it can set up other variables correctly and run source env.sh.

To build NFF-Go NAT application use make in this repository. Alternatively you can run go build or go install ./.... Main executable is nff-go-nat and there is also a GRPC command line client in client directory.

Testing

Testing requires test framework from NFF-Go repository. Test VMs configurations reside there as well. Test image is built using make images target (removed with make clean-images). Test image can be deployed with make deploy target (removed from target hosts with make cleanall). Just like it is done in NFF-Go repository.

It is possible to run stability and performance tests with make test-stability and make test-performance.

Performance testing is done using wrk web server benchmark on one side and test http server on another side.