Update README.md

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wangyu- 2017-08-21 21:20:24 -07:00 committed by GitHub
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@ -12,7 +12,9 @@ For Winodws/MacOS,virtual image with udp2raw pre-installed has been released,you
# Features
### Send / Receive UDP Packet with FakeTCP/ICMP headers
FakeTCP/ICMP headers help you bypass UDP blocking, UDP QOS or improper UDP NAT behavior on some ISPs. UDP headers are also supported.In UDP header mode,it behaves just like a normal UDP tunnel,and you can just make use of the other features.
FakeTCP/ICMP headers help you bypass UDP blocking, UDP QOS or improper UDP NAT behavior on some ISPs. In ICMP header mode,it just works like an ICMP tunnel.
UDP headers are also supported.In UDP header mode,it behaves just like a normal UDP tunnel,and you can just make use of the other features.
### Simulate TCP Handshake
In FakeTcp mode,udp2raw simulates 3-way handshake, along with seq and ack_seq. TCP options MSS, sackOk, TS, TS_ack, wscale are also simulated.Real-time delivery guaranteed,no congrestion control or re-transmission,no TCP over TCP problem when using OpenVPN.