Hi Dudes! Nowadays im building highload NATbox with DPDK and VPP (Vector Packet Processing).
Building system on my VirtualBox installation (CentOS 7.2 x64) with 4Gb mem and 4 cpu cores.
Draw scheme how it connected:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
x _________________MY PHYS MACHINE__________________________x
x | x
x _____SNAT TO MY REAL IFACE FROM VBOX NETFLT_________x
x _____________|____________ ___________________________________x
x| VPP ROUTER IN VM | | CLIENT VM MACHINE |x
x| inet if 1.1.10.10/24 | |lan if 1.1.1.100/24 |x
x| lan if 1.1.1.10/24 |<—- | |x
x|gw to my snat 1.1.10.10| | def gw 1.1.1.10 |x
x|__________________________| |_________________________|x
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
When VPP started okay we need to configure this router, begin:
set int ip addr GigabitEthernet0/8/0 1.1.1.10/24
set int ip addr GigabitEthernet0/9/0 1.1.10.10/24
set int state GigabitEthernet0/8/0 up
set int state GigabitEthernet0/9/0 up
ip route add 0.0.0.0/0 via 1.1.10.1 GigabitEthernet0/9/0
set int snat in GigabitEthernet0/8/0
set int snat out GigabitEthernet0/9/0
snat add address 1.1.10.10
