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Help with Configuring a WAG54G in a peculiar way

Discussion in 'Other Linksys Equipment' started by Shougeki, Jun 25, 2005.

  1. Shougeki

    Shougeki Network Guru Member

    Ok here goes:

    I just got a cable modem from my isp, and it comes with its own modem. I was using a wag54g as my router/gateway but now obviously i cant.

    So what i want to do:
    1. Connect the cable modem to an ethernet port, lets say 4.
    2. Use the wag as wireless access point.
    3. Now preferably id like the wag to route requests through the ethernet port to the cable modem and then out onto the internet.
    4. also i would like to assign an ip to the ethernet port and route through it, so i can have an internal lan and still use the router as a gateway.

    the issue here is that the wag54g has a dsl(telephone) jack and 4 ethernet ports. Only connection to the cable modem is via ethernet or usb.

    Can this be done, if so how ?

  2. 4Access

    4Access Network Guru Member

    Unfortunately because the WAG54G doesn't have a WAN port I don't think you have many options. You can use the WAG as an access point but you'll probably still want some kind of router to connect to your new cable modem. Note that the router could be a non-wireless model if you wanted to save a little money...

    I'll be interested to see if anyone else has other suggestions.

    Good luck.
  3. Shougeki

    Shougeki Network Guru Member

    Kinda gathered that.

    does the wrt54gs have a wan port, or can it do what im looking for?

  4. 4Access

    4Access Network Guru Member

    Yes, both the WRT54G & the WRT54GS have a WAN port. Replacing the WAG54G with one of them is what I would probably do.
  5. audioslim

    audioslim Network Guru Member

    If you cable modem has it's own configuration and auto connection type setup, and is purely a gateway then you should be able to put the router into bridged mode (rfc 1483 bridged or something like that).
    Give your wag an IP on the same range eg cable modem lan addy is , make wag 1.2

    On the wag put in the addy of the cable modem as the wag's default gateway and put in the primary and secondary dns servers of your ISP into the WAG.

    Now connect both device together with the rj45 cable (any port shouldnt matter on wag. also think the ports are auto sensing, but if not you might need to your a cross over cable).

    I've done something similiar by using 2 adsl routers, 1 was a draytek adsl router connected to adsl line and wag connected to the draytek as I described above and I could use the wireless on the WAG for all wb purposes etc.

    You need to make sure that you give IP's in the same range, eg 192.168.1.x to all machines.
    I think you should be able to use either wag or modem router ip addys' as your gateways on your lan.

    Give it a go and see if it works for you

  6. TazUk

    TazUk Network Guru Member

    How the WAG54G is configured is kinda irrelevant as the router part of it would not be used. By connecting the CM to a LAN port on the WAG54G it's effectively being used as a 4 port switch and access point. Setting the IP is only relevant if you want to use it as a DHCP server.

    If it's literally just a cable modem then it won't support NAT so either you need a range of public IP's to use or another device will need to do the NAT. As already suggested the best solution would be to replace the WAG54G with a WRT54G(S).
  7. DocLarge

    DocLarge Super Moderator Staff Member Member

    If you're not into VPN hosting, the WRT54G(S) works fine, as Taz mentioned. If you wanted to do VPN (as your WAG54G was capable of) then you might want to look at the BEFVP41, BEFSX41, or the WRV54G.


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