[Click] Could configure NAT in user level?

[Eddie Kohler]

In general you should use KernelTun.  Perhaps others can say more.  You don't 
need to use FromHost.u and ToHost.u together, I believe.

Eddie


On 5/17/11 8:02 PM, Dongyu Yang wrote:
> Hi Eddie:
>
>      Thanks for your help!
>
>      Now I want to know, how it gets the Packet from the kernel, and send the
> packet to kernel? Does ToHost.u must be used with FromHost.u? And I want to
> know the difference between KernelTun and FromHost.u ToHost.u?
>
>
>
>
>
> 2011/5/12 Eddie Kohler <kohler at cs.ucla.edu <mailto:kohler at cs.ucla.edu>>
>
>     Hi Dongyu,
>
>     The FTPPortMapper message is a bug in the configuration file.  The third
>     argument should be "0", not "to_world_pat 0 1".  This fix has been checked in.
>
>     The configuration really is meant to run in the kernel, though.  I don't
>     know what type of test you want to run.  Userlevel ToHost demands a device
>     name argument, such as eth0.
>
>     E
>
>
>
>     On 5/6/11 4:14 AM, Dongyu Yang wrote:
>
>         Hello !
>              When I use GatewayDevice instead of SniffGatewayDevice, and then the
>         problem of "undeclared element 'ToHostSniffers' " is OK!  But the new
>         problem as bellow:
>
>              ./conf/mazu-nat.click:214: While configuring ‘FTPPortMapper at 37 ::
>         FTPPortMapper’:
>               type mismatch: DATA_REWRITER_INPUT requires int
>              ../conf/mazu-nat.click:93: While configuring ‘ToHost at 5 :: ToHost’:
>              missing mandatory DEVNAME argument
>              ../conf/mazu-nat.click:105: While configuring ‘ToHost at 10 :: ToHost’:
>              missing mandatory DEVNAME argument
>              ../conf/mazu-nat.click:112: While configuring ‘ToHost at 14 :: ToHost’:
>              missing mandatory DEVNAME argument
>              Router could not be initialized!
>
>             How could I modify the configure file to fix this problem?
>
>             Thank your for your help!
>
>
>
>
>
>         2011/5/6 Dongyu Yang<yangdy.nwpu at gmail.com <mailto:yangdy.nwpu at gmail.com>>
>
>             Hello!
>                  I want to test NAT in click, so I use the NAT configure file
>             conf/mazu-nat.click, but when I run it in user level:
>                      click  conf/mazu-nat.click
>
>             but the click report the error:
>                     conf/mazu-nat.click:84: undeclared element 'ToHostSniffers',
>             assuming element class
>
>                  I found the ToHostSniffers element belong to linuxmodule, but
>             I compile
>             click in userlevel, so it report the eror!
>
>                  I want to know how counld I configure NAT in userlevel?
>
>                 Thanks for your help!
>
>
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