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  • route public ips

    so here again

    so very soon i'll have from my isp a /29 class ip 200.100.100.10/29

    lan = 192.168.50.0/24

    se here is how i'd like to allocate those ips

    fa0/0
    _WAN_INT 200.100.100.10

    fa0/1
    _LAN_INT

    200.100.100.11 --> 192.168.50.200
    200.100.100.12 --> 192.168.50.202
    200.100.100.13 --> 192.168.50.203
    200.100.100.14 --> 192.168.50.242

    200.100.100.15 --> _REST of the lan ips

    have no clue howto do it....

  • #2
    Re: route public ips

    Neither do we unless you give us some clue as to what router/firewall you have.

    Comment


    • #3
      Re: route public ips

      I think your available Ip range is 200.100.100.9 - 200.100.100.14.
      Besides, as Joe said you need to provide more info on also what do you need to use those public Ips for?
      Caesar's cipher - 3

      ZKHQ BRX HYHQWXDOOB GHFLSKHU WKLV BRX ZLOO UHDOLVH LW ZDV D ZDVWH RI WLPH!

      SFX JNRS FC U6 MNGR

      Comment


      • #4
        Re: route public ips

        yes, sorry I forgot

        i's a cisco 2651xm

        idea is i have a poll of 6 public ips and i would like to allocate 5 of them to specific hosts
        200.100.100.x1 --> 192.168.50.200
        200.100.100.x2 --> 192.168.50.202
        200.100.100.x3 --> 192.168.50.203
        200.100.100.x4 --> 192.168.50.242

        Comment


        • #5
          Re: route public ips

          Apply the first ip to the WAN interface and use NAT to translate the other ip's to hosts on your internal network.


          Not a good idea to allow outside traffic to your internal Lan. Better option would be to create a dmz and put your internet accessible hosts on there. Then either assign them the public ip's directly or use NAT to translate

          Not sure if this is a router or ASA:

          If router

          ip nat inside source static 192.168.50.200 200.100.100.x1

          Or Pix/ASA

          nat (inside,outside) 200.100.100.x1 192.168.50.200




          Then use the last ip for your internal Lan hosts for internet access by either Dynamic Nat or Pat
          CCNA, CCNA-Security, CCNP
          CCIE Security (In Progress)

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