Network Engineer Help Needed! RRS feed

  • Question

  • Hi,

    Ok, I'll tell you a little bit about what happened the other day.

    It was a Monday and our internet router was playing up again. So I switched it off to reboot it. But when I turned it back on, nothing happened - no response, nothing.

    I then pooed my pants.

    I acquired a replacement router but to configure it to replace the old one.

    This is where the problems start.

    To give you an idea of the infrastructure, I have drawn a diagram of how things look:

    Network Infrastructure Diagram

    Both the mailsweeper and the router appear to be on a 217.40.106.XX network. The old router's IP address was apparently on a However when I use this, an IP conlflict message appears.

    If I use another IP address in the range, we get an error message appears when we try to send emails externally from our Lotus Notes Server -

    "Error transferring to MAIL.SALONSDIRECT.CO.UK; SMTP Protocol Returned a Permanent Error 550 5.7.1 This system is configured to reject mail from (DNS reverse lookup failed)"

    This error message appears when I set the router's IP address setting to anything other than

    I am clearly missing something here - can anyone help?

    Many thanks in advance!
    Thursday, February 21, 2008 2:00 PM