gif(4) should work fine, as it's designed to do what you described. The best approach depends on the level of security you want to achieve. IPIP tunnels aren't encrypted...
regards, kristjan On 5/8/20 3:32 PM, Martin wrote: > I have IPv6 unidirectional tunnel between two machines. One of them is > gateway, another one is a client. > The goal is to route IPv4 packets over IPv6 tunnel from client to gateway and > NAT IPv4 packet to egress on gateway machine. > > May I use gif(4) for it or what is the best approach to traverse IPv4 packets > over IPv6 tun? > > Martin >
