topic Re: default MTU on windows ?? in Network Security https://community.cisco.com/t5/network-security/default-mtu-on-windows/m-p/761172#M1001432 <HTML><HEAD></HEAD><BODY><P>Supposedly the MTU is found in the following reg key:</P><P>HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters\</P><P>Interfaces\[Adapter ID]]</P><P></P><P>My issue though is that when I went to look at the MTU setting it was set to 1300. I know I have sent larger size frames than that, so I don't know how useful that reg key really is.</P><P></P></BODY></HTML> Thu, 26 Jul 2007 14:21:42 GMT ZACH MALMGREN 2007-07-26T14:21:42Z default MTU on windows ?? https://community.cisco.com/t5/network-security/default-mtu-on-windows/m-p/761171#M1001430 <P>Hi,</P><P>I know the default MTU for a ethernet is 1500. But what's the default MTU size on a windows OS, xp/2000/2003 ?? and how to check this value? </P><P>Thanks</P> Mon, 11 Mar 2019 10:49:49 GMT https://community.cisco.com/t5/network-security/default-mtu-on-windows/m-p/761171#M1001430 rico_hao40 2019-03-11T10:49:49Z Re: default MTU on windows ?? https://community.cisco.com/t5/network-security/default-mtu-on-windows/m-p/761172#M1001432 <HTML><HEAD></HEAD><BODY><P>Supposedly the MTU is found in the following reg key:</P><P>HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters\</P><P>Interfaces\[Adapter ID]]</P><P></P><P>My issue though is that when I went to look at the MTU setting it was set to 1300. I know I have sent larger size frames than that, so I don't know how useful that reg key really is.</P><P></P></BODY></HTML> Thu, 26 Jul 2007 14:21:42 GMT https://community.cisco.com/t5/network-security/default-mtu-on-windows/m-p/761172#M1001432 ZACH MALMGREN 2007-07-26T14:21:42Z