https://zhuanlan.zhihu.com/p/.
says:
if the client is in the network of NAT (multiple clients, the network environment of the same IP egress), if the server is configured with net.ipv4.tcp_tw_recycle=1, only one client can successfully connect with itself within a RTO (different clients send packets at different times, resulting in the server directly discarding the packet).
< hr >my understanding is: the NAT router here should be port multiplexing, so different clients use different ports of the NAT router, why does it cause "only one client and server can connect successfully"?
and if multiple clients use the same port of the NAT router, even if net.ipv4.tcp_tw_recycle=0, only one client can connect successfully
what"s wrong with my understanding?