
S W G U s e r G u i d e
81
Chapter 15: Implementing ICAP
b. Click the
Discovery
button.
The remaining fields in the
Scanner
area display the returned Connection Option values:
•
Max
Connections
— Maximum number of simultaneous connections to the Service.
•
Supports
preview
— When checked, that is, indicating that the ICAP Service supports
Preview, the ICAP Service will initially look at a portion of the request before determining if it
has enough information to continue or if it needs to view the full request.
•
Preview
Window
— number of bytes the ICAP Service will preview when supported. The
default is 4096 bytes.
Defining an ICAP Forward Policy
ICAP Forward Policy identifies the ICAP Service Groups from which SWG can request ICAP Services,
and defines behavior in case of an error.
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To define an ICAP Forward Policy
1. Select
Policies
Æ
ICAP
Forward.
2. Do one of the following:
• To create a policy from scratch, right click the
Policies
root node in the tree, and choose
Add
Policy
.
• To duplicate an ICAP Forward policy, right click the policy ti be duplicated, and choose
Dupli
cate
Policy
.
• To edit an ICAP Forward policy that you previously created from scratch or created by dupli‐
cating, select the policy in the tree, and then in the main window, click the
Edit
button.
The Policy Definition is displayed in the main window.
3. Enter a name for the policy.
4. Add or modify the policy description as needed. The description is optional.
5. When done, click
Save
.
6. Continue with
Defining a Rule in an ICAP Forward Policy
.
Defining a Rule in an ICAP Forward Policy
If you duplicated a policy, it already has the same rules as were found in the original policy. You can
NOTES:
• The
values
returned
by
discovery
replace
the
current
values,
and
if
the
returned
values
are
different
than
the
ones
they
replace,
the
field
is
marked
with
a
green
asterisk.
• You
can
return
the
defaults
by
pressing
the
Cancel
button,
and
you
can
override
the
returned
values
with
your
own.
• The
ICAP
client
and
ICAP
Discovery
can
even
work
through
a
scanner
that
is
/not/
enabled
as
an
ICAP
client.
This
means
that
you
can
perform
discovery
through
a
scanner
before
defining
the
Scanner's
ICAP
Client
module,
and
use
the
results
to
determine
if
you
want
the
scanner
to
be
an
ICAP
client.
NOTE:
You
cannot
edit
the
pre
supplied
ICAP
Forward
policy
or
Default
ICAP
Forward
policy
.
However,
you
can
duplicate
the
policy
and
edit
the
duplicate;
you
can
also
create
an
ICAP
Forward
policy
from
scratch.