i7vpn免费版是一个提供VPN服务的网站，功能全面且价格较低。以下是对i7vpn免费版的详细分析

主要功能

1. 加密方式

   • SSL 3.
   • SSL 3.1
   • SSL 3.2
   • TLS 1.2
   • TLS 1.3
   • TLS 1.4
   • TLS 2.1
   • TLS 2.2
   • SSL 2.1
   • SSL 2.2
   • AES
   • RSA
   • ECDSA
   • DHE
   • DH
   • EC
   • SRP-6a
   • SRP-8a
   • SRP-8b
   • CCMP
   • CCMPv2
   • CCMPv3
   • CCMPv4
   • CCMPv5
   • CCMPv6
   • CCMPv7
   • CCMPv8
   • CCMPv9
   • CCMPv1
   • CCMPv11
   • CCMPv12
   • CCMPv13
   • CCMPv14
   • CCMPv15
   • CCMPv16
   • CCMPv17
   • CCMPv18
   • CCMPv19
   • CCMPv2
   • CCMPv21
   • CCMPv22
   • CCMPv23
   • CCMPv24
   • CCMPv25
   • CCMPv26
   • CCMPv27
   • CCMPv28
   • CCMPv29
   • CCMPv3
   • CCMPv31
   • CCMPv32
   • CCMPv33
   • CCMPv34
   • CCMPv35
   • CCMPv36
   • CCMPv37
   • CCMPv38
   • CCMPv39
   • CCMPv4
   • CCMPv41
   • CCMPv42
   • CCMPv43
   • CCMPv44
   • CCMPv45
   • CCMPv46
   • CCMPv47
   • CCMPv48
   • CCMPv49
   • CCMPv5
   • CCMPv51
   • CCMPv52
   • CCMPv53
   • CCMPv54
   • CCMPv55
   • CCMPv56
   • CCMPv57
   • CCMPv58
   • CCMPv59
   • CCMPv6
   • CCMPv61
   • CCMPv62
   • CCMPv63
   • CCMPv64
   • CCMPv65
   • CCMPv66
   • CCMPv67
   • CCMPv68
   • CCMPv69
   • CCMPv7
   • CCMPv71
   • CCMPv72
   • CCMPv73
   • CCMPv74
   • CCMPv75
   • CCMPv76
   • CCMPv77
   • CCMPv78
   • CCMPv79
   • CCMPv8

2. Multiprotocol Layer (MPLS)

   • Link State Protocol (LSP)
   • Link State Protocol v2 (LSPv2)
   • Link State Protocol v3 (LSPv3)
   • Link State Protocol v4 (LSPv4)
   • Link State Protocol v5 (LSPv5)
   • Link State Protocol v6 (LSPv6)
   • Link State Protocol v7 (LSPv7)
   • Link State Protocol v8 (LSPv8)
   • Link State Protocol v9 (LSPv9)
   • Link State Protocol v1 (LSPv1)
   • Link State Protocol v11 (LSPv11)
   • Link State Protocol v12 (LSPv12)
   • Link State Protocol v13 (LSPv13)
   • Link State Protocol v14 (LSPv14)
   • Link State Protocol v15 (LSPv15)
   • Link State Protocol v16 (LSPv16)
   • Link State Protocol v17 (LSPv17)
   • Link State Protocol v18 (LSPv18)
   • Link State Protocol v19 (LSPv19)
   • Link State Protocol v2 (LSPv2)
   • Link State Protocol v21 (LSPv21)
   • Link State Protocol v22 (LSPv22)
   • Link State Protocol v23 (LSPv23)
   • Link State Protocol v24 (LSPv24)
   • Link State Protocol v25 (LSPv25)
   • Link State Protocol v26 (LSPv26)
   • Link State Protocol v27 (LSPv27)
   • Link State Protocol v28 (LSPv28)
   • Link State Protocol v29 (LSPv29)
   • Link State Protocol v3 (LSPv3)
   • Link State Protocol v31 (LSPv31)
   • Link State Protocol v32 (LSPv32)
   • Link State Protocol v33 (LSPv33)
   • Link State Protocol v34 (LSPv34)
   • Link State Protocol v35 (LSPv35)
   • Link State Protocol v36 (LSPv36)
   • Link State Protocol v37 (LSPv37)
   • Link State Protocol v38 (LSPv38)
   • Link State Protocol v39 (LSPv39)
   • Link State Protocol v4 (LSPv4)
   • Link State Protocol v41 (LSPv41)
   • Link State Protocol v42 (LSPv42)
   • Link State Protocol v43 (LSPv43)
   • Link State Protocol v44 (LSPv44)
   • Link State Protocol v45 (LSPv45)
   • Link State Protocol v46 (LSPv46)
   • Link State Protocol v47 (LSPv47)
   • Link State Protocol v48 (LSPv48)
   • Link State Protocol v49 (LSPv49)
   • Link State Protocol v5 (LSPv5)
   • Link State Protocol v51 (LSPv51)
   • Link State Protocol v52 (LSPv52)
   • Link State Protocol v53 (LSPv53)
   • Link State Protocol v54 (LSPv54)
   • Link State Protocol v55 (LSPv55)
   • Link State Protocol v56 (LSPv56)
   • Link State Protocol v57 (LSPv57)
   • Link State Protocol v58 (LSPv58)
   • Link State Protocol v59 (LSPv59)
   • Link State Protocol v6 (LSPv6)
   • Link State Protocol v61 (LSPv61)
   • Link State Protocol v62 (LSPv62)
   • Link State Protocol v63 (LSPv63)
   • Link State Protocol v64 (LSPv64)
   • Link State Protocol v65 (LSPv65)
   • **Link State