HTTP Inspect and packet reassembly

[L0rd Ch0de1m0rt <l0rdch0de1m0rt () gmail com>]

Hello.  I am investigating a situation where TCP streams are being
fragmented quite small at the IP layer for some reason (load
balancer?) and it seems to be causing problems for some of my rules
that leverage HTTP Inspect.  From the manual I read this:

"The current version of HTTP Inspect only handles stateless
processing. This means that HTTP Inspect looks for HTTP
fields on a packet-by-packet basis, and will be fooled if packets are
not reassembled. This works fine when there is
another module handling the reassembly, but there are limitations in
analyzing the protocol. Future versions will have
a stateful processing mode which will hook into various reassembly modules."

OK, so HTTP Inspect is stateless and doesn't reassemble packets.  But
then there is the sentence, "This works fine when there is another
module handling the reassembly, but there are limitations in analyzing
the protocol."  So my question is, if I also have Stream5 enabled for
TCP, is that a sufficient "another module" or are there still
"limitations" with the HTTP protocol?

Specifically, I have problems with rules that use uricontent and
content and need to match across more than one packet.

Thanks!

-L0rd C.

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