Transcript Test network setup Range of tested devices 11 Netgear 10 D

Test network setup
Range of tested devices

11 Netgear


10 D-Link
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
6 Linksys
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3 Belkin
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2 Buffalo, Asus
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1 Zyxel, Webee,
Unicom, Telewell,
SMC, Netwjork,
Jensen, Edimax,
Apple, A-Link
45 devices total
Only ethernet to
ethernet devices (no
ADSL or cable
modems)
Tests & output

“random” options

5 random bytes as
payload
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Option kinds 111 and
151 (just picked two).

Source IP address
and port as option
payload

Again option kinds 111
and 151.
All tested devices seem to pass unknown options
unaltered in SYN, SYN-ACK, FIN, data and pure
ACK TCP segments in both directions.
Some boxes mangle some options, ie. MSS
Most of the boxes pass even malformed options just
fine, the “smart” ones tend to drop them.