Adtran NetVanta 2100 Router Manual PDF (Setup & Configuration Guide)

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NetVanta 2000 Series System Manual

Section 4, User Interface Guide

61200361L1-1E

> P

OLICIES

> A

CCESS

OLICIES

: T

DMZ > C

ONFIGURATION

> NAT N

AME

The

NAT N

AME

drop down menu lists all entries from the NAT table. To manually define the NAT out pool

address here, select

THER

and enter the out pool IP address in the text boxes below the drop down menu.

Enabling NAT on a To DMZ inbound policy applies a Reverse NAT filtering scheme to incoming traffic

received on this policy by the NetVanta 2000 series.

> P

OLICIES

> A

CCESS

OLICIES

: T

DMZ > C

ONFIGURATION

> S

ECURITY

Since access policy and VPN policy selectors are created separately and act independently, the

ECURITY

radio button configures the NetVanta 2000 series to check for the existence of a VPN policy for all the

network traffic governed by this access policy. If any traffic that would pass this access policy would be

sent in the clear, that is, not over an already defined VPN policy, an error will be generated to notify the

user.

Changing the Priority of a Policy

You can change the access policy priority by two ways: You can do simple priority corrections by using the

up (-) and down (¯) buttons, which are located at the end columns of each policy in the access policy table.

Clicking the up or down button increases or decreases the priority of the access policy with respect to its

neighboring policies.

Alternative way can be used for major priority corrections. Select the policy whose priority you want to

change by entering its Rule ID in the text box located after

LACE

ULE

tab. This is located at the end of

the policy table.

Then use the

EFORE

FTER

radio button in combination with Rule ID text box following this radio button

to decide the new place in the table for this policy, and click the

NSERT

button.

The policy will be moved to the new place in the table.

Checking Policy Statistics

Select the policy whose statistics you want to check from the access policy table and click the

button.

This will display the policy statistics page.

Not selecting the

ECURITY

option may allow insecure data transmission through the

NetVanta 2000 series.

If insecure data transmission is allowed because a VPN policy is removed after the

ECURITY

option has been performed on an access policy, no user notification will be

given. To ensure data security, verify each access policy after VPN changes are made.

Page 62 / 210

Section 4, User Interface Guide

NetVanta 2000 Series System Manual

61200361L1-1E

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ

The From DMZ Policy Configuration page is displayed by clicking

CCESS

OLICIES

: F

ROM

DMZ

in the

menu list on the left side of the display window. From DMZ outbound policies apply to all data received by

the NetVanta 2000 series on the DMZ interface.

The From LAN Policy Configuration page displays a list of all current policies and provides an easy way

to organize them using the

ULE

field.

Before creating a new From DMZ outbound policy decide the appropriate priority for the policy.

All

policies are displayed in descending order according to priority. Using the

drop down menu

containing

BEFORE

AFTER

BEGINNING

, and

END

options, configure the placement of the policy and

click the

button. The Internet Access Policy Configuration page is displayed. A discussion of the

fields found on the Internet Access Policy Configuration page follows the figure.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> R

ULE

The

ULE

number is a system-wide unique policy ID generated by the NetVanta 2000 series when a new

access policy is created.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> P

OLICY

LASS

The

OLICY

LASS

field is populated automatically by the NetVanta 2000 series using the current policy

class (VPN, To/From LAN, To/From DMZ).

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> S

OURCE

ESTINATION

The

OURCE

IP/D

ESTINATION

displays the source and destination IP addresses used for the policy. All IP

records previously defined in the IP table will appear in this drop down menu. Select the predefined IP

record, or choose

THER

and define the source/destination IP using the IP and Mask Bits text boxes below

the drop down menu.

option in this menu represents all valid IP addresses in the Internet address

space.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> D

ESTINATION

ORT

The

ESTINATION

ORT

drop down menu lists all definitions made in the services table. Choose one of the

predefined destination port entries, or choose

THER

and define the destination port or port range using the

text boxes below the drop down menu. To define a single port, enter the desired port value in the port range

start text box and leave the port range text box empty.

option in this menu represents the complete port

range from 1 to 65535.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> P

ROTOCOL

YPE

The

ROTOCOL

YPE

drop down menu selects the transport protocol for this access policy. If the desired

transport protocol is not listed in the menu, choose

THER

and enter the desired IP based transport protocol

number in the text box below the drop down menu.

Page 63 / 210

NetVanta 2000 Series System Manual

Section 4, User Interface Guide

61200361L1-1E

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> A

CTION

YPE

The

CTION

YPE

menu defines the policy as a Permit or Deny policy. Permit policies allow traffic matched

by the policy selectors to pass through and Deny policies blocks that traffic.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> T

IME

CHEDULE

SED

The

IME

CHEDULE

SED

menu attaches a predefined time schedule to the Permit type access policy. This

activates the policy only in the time windows defined in the selected time schedule.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> E

NABLE

The

NABLE

radio button selectively enables or disables event logging for the access policy.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> E

NABLE

NAT

The

NABLE

NAT

radio button provides control to enable or disable NAT for the policy.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> NAT N

AME

The

NAT N

AME

drop down menu lists all entries from the NAT table. To manually define the NAT out pool

address here, select

THER

and enter the out pool IP address in the text boxes below the drop down menu.

> P

OLICIES

> A

CCESS

OLICIES

: F

ROM

DMZ > C

ONFIGURATION

> S

ECURITY

Since access policy and VPN policy selectors are created separately and act independently, the

ECURITY

radio button configures the NetVanta 2000 series to check for the existence of a VPN policy for all the

network traffic governed by this access policy. If any traffic that would pass this access policy would be

sent in the clear, that is, not over an already defined VPN policy, an error will be generated to notify the

user.

Not selecting the

ECURITY

option may allow insecure data transmission through the

NetVanta 2000 series.

If insecure data transmission is allowed because a VPN policy is removed after the

ECURITY

option has been performed on an access policy, no user notification will be

given. To ensure data security, verify each access policy after VPN changes are made.

Page 64 / 210

Section 4, User Interface Guide

NetVanta 2000 Series System Manual

61200361L1-1E

Changing the Priority of a Policy

You can change the access policy priority by two ways: You can do simple priority corrections by using the

up (-) and down (¯) buttons, which are located at the end columns of each policy in the access policy table.

Clicking the up or down button increases or decreases the priority of the access policy with respect to its

neighboring policies.

Alternative way can be used for major priority corrections. Select the policy whose priority you want to

change by entering its Rule ID in the text box located after

LACE

ULE

tab. This is located at the end of

the policy table.

Then use the

EFORE

FTER

radio button in combination with Rule ID text box following this radio button

to decide the new place in the table for this policy, and click the

NSERT

button.

The policy will be moved to the new place in the table.

Default Access Policies

By default, the NetVanta 2000 series has eight corporate outbound policies configured for accessing

popular Internet services from corporate network. With these default access policies any host in the

corporate network can access the specified services on any host in the Internet. You can modify these

policies to suite your network access policy.

> P

OLICIES

> VPN

When adding a VPN policy, decide its priority. By default, new VPN policies will be added with the least

priority (i.e., at the end of the VPN policy table).

For setting the priority of a new VPN policy, select the

AFTER

BEFORE

option from the drop down

menu. Enter the existing VPN policy name to use as the placing guide for the newly added VPN

policy.

VPN policies may be added using either manual or automatic key management.

Deleting A VPN Policy

Select he VPN policy you want to delete from the VPN policy table and click the

ELETE

button. This will

bring up the VPN policy delete confirmation dialog.

Default access policies have NAT enabled.

Page 65 / 210

NetVanta 2000 Series System Manual

Section 4, User Interface Guide

61200361L1-1E

If you answer affirmative to this dialog by clicking

, the VPN policy will be removed.

Editing A VPN Policy

Select the VPN policy you want to edit from the VPN policy table and click

ODIFY

button. This brings the

selected VPN policy in the edit mode.

Here you can make the desired changes to the VPN policy.

Viewing A VPN Policy

Select the VPN policy you want to view from the VPN policy table. Click on the

HOW

button. This shows

the selected VPN policy in non-editable form.

This VPN policy view does not show any keying information.

Changing Priority of A VPN Policy

Similar to access policies you can change the priority of VPN policy by two ways: You can do simply

priority corrections by using the up (-) and down (¯) buttons, which are located at the end columns of each

policy in the VPN policy table. Clicking the up or down button increases or decreases the priority of the

access policy with respect to its neighboring policies.

Alternative way can be used for major priority corrections. Select the policy whose priority you want to

change by entering its policy name in the text box located after

LACE

tab. This is located at the end of the

policy table.

Then use the drop down menu with

BEFORE/AFTER

options and the next VPN policy-name text box to

define the new place for this VPN policy in the table. Click the

button.

The VPN policy will be moved to the new place in the table.

To configure security policy you have to select the choice

in the

CCESS

OLICIES

If there are secure communications active using this VPN policy, they may get disrupted.

If there are secure communications active using this VPN policy, they may get disrupted

due to the changes in the VPN policy parameters.

If the access policies are wider than IPsec policies the traffic which doesn't falls in the

range will be passed through as plain packets.

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