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11.2 Protocols
The protocol and port signature for connections can be defined in here. Capital service
names are predefined and can neither be altered nor deleted.
A table gives you an overview of all available objects. If there are more than 10 entries,
a navigation bar will appear below the right bottom hand corner of the table where you
can page through the entries or open the table in fullscreen mode. Pick an entry by
clicking either its title or the pencil icon to enter the detail view. Add new objects by
clicking "New Entry" below the table on the left. Use the dustbin icon to delete entries.
Protocol nickname
Specify a name for the new protocol here. You can select it later on in all masks where
protocols are involved.
The configuration options in this menu are structured by topic. You can change between
the different screens by clicking on the tabs at the top.
11.2-A Protocol signature................................................................ 78
11.2-B Usage................................................................................... 79
11.2-A
Protocol signature
In multiple SX-GATE configuration screens you will find protocol selection lists. The
firewall and the SOCKS proxy configuration are good examples. The available choices
for these selection lists are configured here. There are already a couple of predefined
protocols, but it's also possible to add your own entries here.
There's no need to take the title "protocol" too literally. It is often handy to combine
multiple protocols into one entry. For instance you could create one protocol entry for a
single client or server system and then configure all acceptable protocols for this host
in there. Of course you still have to add a rule which associates the protocol with the
host's IP.
From the technical point of view each "protocol" you define here refers to a list of
signatures. Each signature contains the three fields IP protocol number, source port
and destination port. Port numbers are only defined for the IP protocols TCP and UDP.
Description "
…
"
This field serves for documentation only.
Signature
The protocol signature is a combination of the following columns:
