Please Recommend Ethernet Modem (NOT Router) for 8mbps BroadBand

Discussion in 'Other Linksys Equipment' started by rizsher, Sep 3, 2007.

  1. rizsher

    rizsher Network Guru Member


    Not sure if this is the right forum to post this query, please move if its not appropriate.

    I used my trusty ADSLNation X-Modem (the original cream coloured one) for years with my 1 mbps DSL connection and it performed brilliantly, never gave a problem even once.

    Last month, I switched to Sky ADSL Max package at 8 mbps speed. Didn't want to use their modem/router as I have specific requirement to have a public IP coming into my router. So, using various tips on the net, I was able to use the ADSLXodem with Sky. However, under heavy Bittorrent download, the DSL connection would disc. Not sure if its a Sky bb problem. but in any case, for other reasons,. I've cancelled Sky and now moving to Demon intenret 8 mbps and would like to know peoples' experience with Ethernet modem...

    I need trasnparent IP pass thru, NO NAT. The modem should be able to pass the public IP to the WAN of the downstream router. The modem will be used with PPPoA ADSL broadband in the UK.

  2. stangri

    stangri LI Guru Member

    Cisco has a model called Soho 97, as far as I know it does PPPoA and given the level of customization of the previous Cisco models, it might work just fine for you.
  3. mstombs

    mstombs Network Guru Member

    Are you sure you won't be able to use PPPOE? Full bridge PPPOE seems to be the most transparent method of bridging ADSL. If all the UK LLU connections are heading back to PPPOA only I expect to see many more of these posts!

    I just had a look at a datasheet for a new M3 X-modem, and even that has a Gateway mode suggesting it really is a Router running an OS such as Linux in a 'half-bridge' mode, pretending to be a modem.

    Commercial 'adsl routers' that offer half-bridge mode called zipb, dhcp spoof, IP extension etc all seem to have various issues, some still run NAT internally - just hide it - but will then fail under heavy P2P etc. Guys on the Aus Whirlpool forums seems to prefer certain Speedtouch models. Some of which seem to be available in UK cheaply from (not used personally but recommended by others) or of course ebay.

    As you may see by my numerous posts on this subject I had to write a custom script on top of 3rd party firmware for my ADSL2MUE to do the same that you want - and then a further script to teach Hyperwrt Thibor or Tomato how to handle the technically correct single IP address, full Netmask and off local network Gateway.

    Do you recall what method your old X-modem uses? ie does it pass on the ISP gateway and full netmask to your router?
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