ifconfig --help

ip 변경하기

$ ifconfig <interface> [[<AF>] <address>] <AF>=Address family. Default: inet   List of possible address families:     unix (UNIX Domain) inet (DARPA Internet) inet6 (IPv6)     ax25 (AMPR AX.25) netrom (AMPR NET/ROM) rose (AMPR ROSE)     ipx (Novell IPX) ddp (Appletalk DDP) ec (Econet)     ash (Ash) x25 (CCITT X.25)

mac 변경하기

$ ifconfig <interface> [hw <HW> <address>] <HW>=Hardware Type.   List of possible hardware types:     loop (Local Loopback) slip (Serial Line IP) cslip (VJ Serial Line IP)     slip6 (6-bit Serial Line IP) cslip6 (VJ 6-bit Serial Line IP) adaptive (Adaptive Serial Line IP)     strip (Metricom Starmode IP) ash (Ash) ether (Ethernet)     tr (16/4 Mbps Token Ring) tr (16/4 Mbps Token Ring (New)) ax25 (AMPR AX.25)     netrom (AMPR NET/ROM) rose (AMPR ROSE) tunnel (IPIP Tunnel)     ppp (Point-to-Point Protocol) hdlc ((Cisco)-HDLC) lapb (LAPB)     arcnet (ARCnet) dlci (Frame Relay DLCI) frad (Frame Relay Access Device)     sit (IPv6-in-IPv4) fddi (Fiber Distributed Data Interface) hippi (HIPPI)     irda (IrLAP) ec (Econet) x25 (generic X.25)     eui64 (Generic EUI-64) ※ MAC을 변경하기 위해서는 nic device가 down 되어 있어야 하며, root권한이어야 함. $ ifconfig eth0 hw ether 00:00:00:00:00:00 SIOCSIFHWADDR: Operation not permitted $ sudo ifconfig eth0 hw ether 00:00:00:00:00:00 [sudo] password for user: SIOCSIFHWADDR: Device or resource busy - you may need to down the interface

$ ifconfig --help
Usage:
  ifconfig [-a] [-v] [-s] <interface> [[<AF>] <address>]
  [add <address>[/<prefixlen>]]
  [del <address>[/<prefixlen>]]
  [[-]broadcast [<address>]]  [[-]pointopoint [<address>]]
  [netmask <address>]  [dstaddr <address>]  [tunnel <address>]
  [outfill <NN>] [keepalive <NN>]
  [hw <HW> <address>]  [metric <NN>]  [mtu <NN>]
  [[-]trailers]  [[-]arp]  [[-]allmulti]
  [multicast]  [[-]promisc]
  [mem_start <NN>]  [io_addr <NN>]  [irq <NN>]  [media <type>]
  [txqueuelen <NN>]
  [[-]dynamic]
  [up|down] ...

  <HW>=Hardware Type.
  List of possible hardware types:
    loop (Local Loopback) slip (Serial Line IP) cslip (VJ Serial Line IP)
    slip6 (6-bit Serial Line IP) cslip6 (VJ 6-bit Serial Line IP) adaptive (Adaptive Serial Line IP)
    strip (Metricom Starmode IP) ash (Ash) ether (Ethernet)
    tr (16/4 Mbps Token Ring) tr (16/4 Mbps Token Ring (New)) ax25 (AMPR AX.25)
    netrom (AMPR NET/ROM) rose (AMPR ROSE) tunnel (IPIP Tunnel)
    ppp (Point-to-Point Protocol) hdlc ((Cisco)-HDLC) lapb (LAPB)
    arcnet (ARCnet) dlci (Frame Relay DLCI) frad (Frame Relay Access Device)
    sit (IPv6-in-IPv4) fddi (Fiber Distributed Data Interface) hippi (HIPPI)
    irda (IrLAP) ec (Econet) x25 (generic X.25)
    eui64 (Generic EUI-64)
  <AF>=Address family. Default: inet
  List of possible address families:
    unix (UNIX Domain) inet (DARPA Internet) inet6 (IPv6)
    ax25 (AMPR AX.25) netrom (AMPR NET/ROM) rose (AMPR ROSE)
    ipx (Novell IPX) ddp (Appletalk DDP) ec (Econet)
    ash (Ash) x25 (CCITT X.25)