Configuring a Cisco 828 for multiple IPs

Discussion in 'Cisco' started by need_help, Mar 25, 2005.

  1. need_help

    need_help Guest

    Having a bit of a nightmare at the moment with our new Cisco 828. Hav
    spent many hours on the phone to Cisco and have the followin
    configuration but I think it is setup for when an ISP provides
    static IP and not a range which we have

    interface Ethernet
    no shu
    ip address 255.0.0.
    ip nat insid
    no ip directed-broadcas

    interface ATM
    no shu
    no ip addres
    no ip directed-broadcas
    no atm ilmi-keepaliv

    interface ATM0.1 point-to-poin
    no ip directed-broadcas
    pvc 0/3
    encapsulation aal5mux ppp diale
    dialer pool-member

    interface Dialer
    ip address negotiate
    no ip directed-broadcas
    ip nat outsid
    encapsulation pp
    dialer pool
    ppp chap hostname ***
    ppp chap password ******
    ppp pap sent-username *** password ******

    ip nat inside source list 1 interface Dialer1 overloa

    ip route dialer
    access-list 1 permit 255.0.0.

    Now basically we have an IP range provided to us by our SDSL provide
    which I have provided below (have changed the IPs from the rea

    Static IP Range:

    I am under the impression that the second IP should be assigned to th
    router ( and that we can then have traffic passe
    through to web servers ie etc. Now I understand Cisco'
    CRWS interface has a fit if you change it's IP so I am happy to kee
    the local LAN in the range but have no idea ho
    to tell the router about all this info while keeping our SDSL line u
    and running

    Hopefully you can help me find a solution to a problem that is no
    written about anywhere

    Many thanks
    need_help, Mar 25, 2005
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  2. need_help

    d Guest

    Not sure what CRWS is?

    Anyway I think you are trying to do this.

    ip nat inside source static tcp eq 80

    This will take any traffic from destined to port 80 and send
    it to port 80 on

    Is this what your after?

    d, Mar 31, 2005
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  3. Just telnet or make a console connection to the router, get into enable
    mode and then do:

    router#configure terminal
    router(config)#interface Ethernet0
    router(config-if)#ip address <your top secret address> secondary
    router#copy running-config startup-config

    Now you can use addreses 34 to 46 for your local hosts.
    Martin Gallagher, Apr 1, 2005
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