BPF questions...

[barcaroller <barcaroller () gmail com>]

This may not be the right group, but I have a few BPF questions that I 
hope you can answer:

* What is the maximum size of a BPF expression that can be passed to 
tcpdump and pcap_compile()?  Some of the BPF expressions I've observed 
are over 1024 characters and I wonder what the limt is (if any)?

* What is the maximum level of nesting for BPF expressions for tcpdump 
and pcap_compile()?  Currently, I'm observing nesting levels of 10 or 
more.

* Are there BPF expressions for "nested" vlans?


Thanks much.


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