Package jpcap.packet

Class IPPacket

java.lang.Object
jpcap.packet.Packet
jpcap.packet.IPPacket
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
ICMPPacket, TCPPacket, UDPPacket
public class IPPacket extends Packet
This class represents an IP packet.

Both IPv4 and IPv6 are supported.

See Also:

  • Field Details

    • version

      public byte version
      IP version (v4/v6)

    • priority

      public byte priority
      Priority (class) (v4/v6)

    • d_flag

      public boolean d_flag
      IP flag bit: [D]elay (v4)

    • t_flag

      public boolean t_flag
      IP flag bit: [T]hrough (v4)

    • r_flag

      public boolean r_flag
      IP flag bit: [R]eliability (v4)

    • rsv_tos

      public byte rsv_tos
      Type of Service (TOS) (v4/v6)

    • length

      public short length
      Packet length (v4/v6)

    • rsv_frag

      public boolean rsv_frag
      Fragmentation reservation flag (v4)

    • dont_frag

      public boolean dont_frag
      Don't fragment flag (v4)

    • more_frag

      public boolean more_frag
      More fragment flag (v4)

    • offset

      public short offset
      Fragment offset (v4)

    • hop_limit

      public short hop_limit
      Hop Limit, Time To Live (TTL) (v4/v6)

    • protocol

      public short protocol
      Protocol (v4/v6)

    • IPPROTO_ICMP

      public static final short IPPROTO_ICMP
      Protocol number for ICMP
      See Also:

    • IPPROTO_IGMP

      public static final short IPPROTO_IGMP
      Protocol number for IGMP
      See Also:

    • IPPROTO_IP

      public static final short IPPROTO_IP
      Protocol number for IP in IP
      See Also:

    • IPPROTO_TCP

      public static final short IPPROTO_TCP
      Protocol number for TCP
      See Also:

    • IPPROTO_UDP

      public static final short IPPROTO_UDP
      Protocol number for UDP
      See Also:

    • IPPROTO_IPv6

      public static final short IPPROTO_IPv6
      Protocol number for IPv6
      See Also:

    • IPPROTO_HOPOPT

      public static final short IPPROTO_HOPOPT
      Protocol number for IPv6 hop-by-hop option
      See Also:

    • IPPROTO_IPv6_Route

      public static final short IPPROTO_IPv6_Route
      Protocol number for routing header for IPv6
      See Also:

    • IPPROTO_IPv6_Frag

      public static final short IPPROTO_IPv6_Frag
      Protocol number for fragment header for IPv6
      See Also:

    • IPPROTO_IPv6_ICMP

      public static final short IPPROTO_IPv6_ICMP
      Protocol number for IPv6 ICMP
      See Also:

    • IPPROTO_IPv6_NoNxt

      public static final short IPPROTO_IPv6_NoNxt
      Protocol number for no next header header for IPv6
      See Also:

    • IPPROTO_IPv6_Opts

      public static final short IPPROTO_IPv6_Opts
      Protocol number for destination option for IPv6
      See Also:

    • ident

      public int ident
      IDENTIFICATION (v4)

    • flow_label

      public int flow_label
      Flow label (v6)

    • src_ip

      public InetAddress src_ip
      Source IP address

    • dst_ip

      public InetAddress dst_ip
      Destination IP address

    • option

      public byte[] option
      Option in IPv4 header (v4)

    • options

      public List options
      Option headers in IPv6Option (v6)

  • Constructor Details

    • IPPacket

      public IPPacket()

  • Method Details

    • setIPv4Parameter

      public void setIPv4Parameter(int priority, boolean d_flag, boolean t_flag, boolean r_flag, int rsv_tos, boolean rsv_frag, boolean dont_frag, boolean more_frag, int offset, int ident, int ttl, int protocol, InetAddress src, InetAddress dst)
      Sets the IPv4 parameters
      Parameters:
      d_flag - IP flag bit: [D]elay
      t_flag - IP flag bit: [T]hrough
      r_flag - IP flag bit: [R]eliability
      rsv_tos - Type of Service (TOS)
      priority - Priority
      rsv_frag - Fragmentation Reservation flag
      dont_frag - Don't fragment flag
      more_frag - More fragment flag
      offset - Offset
      ident - Identifier
      ttl - Time To Live
      protocol - Protocol
      This value is ignored when this packets inherits a higher layer protocol(e.g. TCPPacket)
      src - Source IP address
      dst - Destination IP address

    • setIPv6Parameter

      public void setIPv6Parameter(int cls, int flowlabel, int nxt_hdr, int hop_limit, InetAddress src, InetAddress dst)
      Sets the IPv6 parameters
      Parameters:
      cls - class
      flowlabel - flow label
      nxt_hdr - next header
      hop_limit - hop limit
      src - source address
      dst - destination address

    • toString

      public String toString()
      Returns a string represenation of this packet.

      Format(IPv4): src_ip->dst_ip protocol(protocol) priority(priority) [D][T][R] hop(hop_limit) [RF/][DF/][MF] offset(offset) ident(ident)

      Format(IPv6): src_ip->dst_ip protocol(protocol) priority(priority) flowlabel(flow_label) hop(hop_limit)

      Overrides:
      toString in class Packet
      Returns:
      a string represenation of this packet