1 Reply Latest reply: Sep 26, 2012 10:23 AM by realdreams RSS

    ip address bad mask


      Core2(config-if)#ip add

      Bad mask /16 for address


      I tried

      ip classless

      ip subnet-zero


      But I cannot find them in running config after I enter theses commands. No error message either.

      C3725 12.4(25d)


      Why is the router ignoring ip classless and ip subnet-zero?

        • 1. Re: ip address bad mask

          ....... i was an idiot....... I put network address as host address and then try to find out why it does not work......

          But seriously tho, the error message is so misleading



          ip classess


          ip subnet-zero

          are special commands that are enabled by default and does not show up in configuration unless they are explicitly disabled.