problem with arp-request
Brecht Vermeulen
brecht.vermeulen at rug.ac.be
Tue May 29 16:39:03 EDT 2001
okay, I remember that in click 1.1 :
line 36: While configuring `CheckIPHeader at 18 :: CheckIPHeader':
warning: IP header unaligned, cannot use fast IP checksum
(Try passing the configuration through `click-align'.)
this was for a raw config written to /proc/click/config
but click 1.2.0 doesn't give this warning anymore.
Can this be the difference ? Is there something changed about this in
click 1.2.0 ?
Is it then necessary to use the tool click-align ?
Maybe it would be interesting to have a command line for the most
optimised config in the FAQ or something ?
e.g. ../tools/click-fastclassifier/click-fastclassifier -k test.router
|../tools/click-devirtualize/
click-devirtualize -k|../tools/click-install/click-install
What do you use ?
regards,
Brecht
"Douglas S. J. De Couto" wrote:
>
> it looks as if your packets are somehow not aligned right. where is
> the 220.61.214.194 coming from? i have seen similar symptoms when
> using click (userlevel) on an iPaq. The iPaq's strongarm architecture
> flushed out many alignment and padding bugs that i had.
>
> you might want to look at the raw packet formats to try and find out
> where the 220... is comfing from, either by modifying tcpdump source
> code or using the click print element.
>
> d
>
> --
> Douglas S. J. De Couto decouto at lcs.mit.edu
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