Adder Technology AdderView CATx EPS-S8 - Manual (Page 90)















9
Setting IP access control
The.golden.rule.with.this.feature.is.‘Include.before.you.exclude’.or.to.put.it.
another.way.‘Arrange.allowed.addresses.in.the.list.before.the.denied.addresses’..
This.is.because.the.positions.of.entries.in.the.list.are.vitally.important..Once.a.
range.of.addresses.is.denied.access,.it.is.not.possible.to.make.exceptions.for.
particular.addresses.within.that.range..For.instance,.if.the.range.of.addresses.
from.A.to.F.are.denied.access.first,.then.the.address.C.could.not.be.granted.
access.lower.down.the.list..Address.C.needs.to.be.placed.in.the.list.before.the.
denied.range.
IMPORTANT: This feature should be configured with extreme caution as it is
possible to deny access to everyone. If such an error occurs, see
Clearing IP
access control for details about how to regain access.
To define a new IP access control entry
1. Click.the.Add.button.to.display.a.popup.dialog:
2. Enter.the.base. network address ,.the. mask .and.select.the.appropriate.
access.setting.
3. Click.the.OK.button.
To reorder access control entries
IMPORTANT: When reordering, ensure that any specific allowed addresses are
listed higher in the list than any denied addresses. Take care not to invoke any
deny access settings that would exclude valid users.
1. In.the.access.control.list,.click.on.the.entry.to.be.moved.
2. Click.the.Up.or.Down.buttons.as.appropriate.
To edit/remove access control entries
1. In.the.access.control.list,.click.on.the.appropriate.entry.
2. Click.either.the.Edit.or.Remove.button.as.appropriate.
Network/Address
Enter.the.network.address.
that.is.to.be.allowed.or.denied.
access..If.a.range.of.addresses.
is.being.specified.then.specify.
any.one.of.the.addresses.
within.the.range.and.use.the.
Mask.entry.to.indicate.the.size.
of.the.range.
Mask
Enter.an.IP.network.mask.
that.indicates.the.range.of.
addresses.that.are.to.be.
allowed.or.denied.access..
For.instance,.if.only.a.single.
specified.IP.address.were.to.be.
required,.the.mask.entry.would.
be.255.255.255.255.in.order.
to.specify.a.single.location..See.
Calculating the mask for IP
access control
.for.details.
Access
Use.the.arrow.buttons.to.
select.either.‘Allow’.or.
‘Deny’.as.appropriate.
In.the.list,.access.control.addresses.prefixed.by.‘+’.are.allow.entries.while.those.
prefixed.by.‘–.‘.are.deny.entries.
To get here
1. Using.VNC.viewer.or.a.browser,.log.on.as.the.‘admin’.user.
2. Click.the.‘Configure’.button.in.the.top.right.corner.
3. Click.the.‘Network.configuration’.option.