multiple subnet dhcp single network card

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This topic contains 3 replies, has 0 voices, and was last updated by  kai 10 years, 4 months ago.

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  • #41656

    kai
    Member

    on my ETH00 have 192.168.10.254, 192.168.20.254, 192.168.30.254 IP address, but dhcp seem no working when i enable multiple subnet on DHCP. any thing wrong with the setup?
    thanks

    #48053

    ppalias
    Member

    In which way do you distinguish the different networks? Vlans?

    #48054

    kai
    Member

    ip alias

    #48055

    ppalias
    Member

    It cannot work like this. There is no way to distinguish the different networks with IP alias.

    #48056

    I’m not sure if ppalias is trying to be helpful or not. But i’ll try to explain it better than he did.

    DHCP clients use a broadcast 255.255.255.255 over their respective network.
    Basically every machine hears that request for a dhcp/bootp.

    How does the DHCP server determine who gets what ip address if you use just IP alias on a single interface (eth00- ip addresses 192.168.10.254, 192.168.20.254, 192.168.30.254)….I have to ask
    1) what subnet are these gateway ip address in?
    2) what dhcp scope are you trying to give to their client pc’s?
    3) and how do you want this all accomplished?

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