MTU question on RV042

Discussion in 'Cisco Small Business Routers and VPN Solutions' started by dsinc01, Aug 31, 2006.

  1. dsinc01

    dsinc01 LI Guru Member

    I am about to setup an RV042 with dual WAN using a DSL and Cable Connection.

    I read an article here about changing the MTU on each port to 1492 for DSL and 1500 for Cable.

    Will it not work at all if I don't? Or what is the signficant advantage of doing this over leaving it on auto.

    I have only run into one instance of having to set a RV042 to manual, but that was because of the DSL modem I was using. Elsewhere i have it set to Auto with no problems thus far.

    I know MTU is the Maximum Transmission Unit. But my real question here is if I have a DSL modem that is currently working on Auto, and add a cable connection, will I then have problems because they work on different MTU's?


  2. Esquire

    Esquire Mesquire Staff Member Member

    In general, no, you should have no problem leaving it on Auto, but if you have problem accessing certain sites, e.g.,, (and their Windows Update site), then you should try a lower MTU value manually.
  3. dsinc01

    dsinc01 LI Guru Member

    That is what I needed to know, thanks.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice