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Diffrence between Client and Client-bridge mode

Discussion in 'DD-WRT Firmware' started by crawdaddy, Mar 19, 2006.

  1. crawdaddy

    crawdaddy Network Guru Member

    I am so sorry if it has been covered already, but what is the diffrence between client and client-bridge mode. For all intensive purposes, I just need to connect one wired client to a an access point that is a bit farther away than can be reached with a normal wifi card. So I'm gonna put the router set in client-bridge mode considerably closer to the main router with higher gain antennas. So in conclusion, what's the diffrence between client and client bridge mode in the wireless page of the dd-wrt firmware. Thanks!
     
  2. tlj

    tlj Network Guru Member

    Here is the basic difference between client-mode and client-transparent-bridge mode.

    Client-mode:
    #1 - The DD-WRT radio associates to an AP as a client. It gets an IP address from the AP.
    #2 - The ethernet connected PC computers on the LAN (192.168.1.x) are Port-translated (natted) to the outside IP address of the DD-WRT (firewalled).

    example - the DD-WRT client mode radio connects to an AP and gets an IP address of 172.16.20.40 - - - The local PC computers on the ethernet of the local DD-WRT are really 192.168.1.x - - - when a computer on the local lan accesses the internet - the DD-WRT client mode radio translates the 192.168.1.x IP address into a 172.16.20.40 address. This way, one IP address from the AP can serve many remote client computers using just one IP address. For the average customer of any wireless ISP, this is the prefered method to bring up client customer networks - if the customer just wants internet access and does not have any servers.

    Client-transparent-bridge mode:
    #1 - The DD-WRT radio associates to an AP as a client. It gets an IP address from the AP.
    #2 - The IP address range (subnet) is the same on the WAN and LAN.
    The client transparent bridge functions like an ethernet extensioin cord. What is on the ethernet at the AP is on the ethernet of the client-transparent-bridge radio. You have the same IPs.

    If the client transparent bridge gets (uses)an IP address from the AP of 172.16.20.x/24 -then- the ethernet connected PC computers on the remote client-transparent-bridge must use the same 172.16.20.x/24 subnet set of IP addresses.
     
  3. crawdaddy

    crawdaddy Network Guru Member

    that is the exact answer I was looking for, thanks. I used client-bridge blindly, and it turned out to be what I wanted/needed. But that clears up why there are 2 client modes. Again, thanks a ton!
     

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