C# Signature:

    public enum PROTOCOL : short
    {//dummy for IP  
    IPPROTO_IP = 0,
    //control message protocol  
    IPPROTO_ICMP = 1,
    //internet group management protocol  
    IPPROTO_IGMP = 2,
    //gateway^2 (deprecated)  
    IPPROTO_GGP = 3,
    //bluetooth RFCOMM
    BTHPROTO_RFCOMM = 3,
    //tcp  
    IPPROTO_TCP = 6,
    //pup  
    IPPROTO_PUP = 12,
    //user datagram protocol  
    IPPROTO_UDP = 17,
    //xns idp  
    IPPROTO_IDP = 22,
    //IPv6  
    IPPROTO_IPV6 = 41,
    //UNOFFICIAL net disk proto  
    IPPROTO_ND = 77,

    IPPROTO_ICLFXBM = 78,
    //raw IP packet  
    IPPROTO_RAW = 255,

    IPPROTO_MAX = 256
    }

VB Signature:

User-Defined Types:

None.

Alternative Managed API:

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Notes:

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