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Using Diagnostic Tools
E
T
t
XAMPLE
1
he following filter string captures all TCP packets:
cp
E
T
r string captures all TCP pac
tined for port 80:
tcp dst port 80
XAMPLE
2
he following filte
kets des
P
T
ment captures all UDP packets.
lement can be prepended to port-
rela
udp
URPOSE
he
udp
ele
ted elements.
This e
ip proto
Note:
When not prepended to other elements,
udp
.
element
ERS
nt
String. A port-re
t should be
restricted to sav
DP packets. This can be the
following:
•
dst port
- C
for a specific po
•
port
- Captures al
s originating
from or destined
t.
•
src port
- C
P packets
originating from
E
ring captures all UDP packets:
the
udp
element is the equivalent of
S
YNTAX
udp
udp
P
ARAMET
eleme
lated filter string element tha
ing only U
apture all UDP packets destined
rt.
l UDP packet
for a specific por
apture all UD
a specific port.
XAMPLE
1
The following filter st
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D-Link NetDefend firewall User Guide