[Click] questions about userlevel mode & kernel mode

[Beyers Cronje]

Hi,

By default when click is running in userlevel the linux kernel will forward
packets. You can however disable this using the "*SNIFFER false*"
configuration option of FromDevice, see
http://read.cs.ucla.edu/click/elements/fromdevice.u for more info.

In kernel mode Linux will not process the packet at all, you have to use
ToHost http://read.cs.ucla.edu/click/elements/tohost to pass packets to the
kernel.

Beyers Cronje

On Wed, Sep 23, 2009 at 4:35 PM, 束传军 <shuchuanjun at gmail.com> wrote:

> Hi,
> I have some questions about userlevel mode and kernel mode. When click is
> running in userlevel mode, will both the linux kernel and the click router
> forward packets ? While in kernel mode, only click router forward pakcets ?
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