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57
VPN
Linksys
Aggressive Mode
:
Adopted by remote devices to enhance the
security control if dynamic IP is used for
connection.
Compress
(Support
IP
Payload
Compression
Protocol (IP Comp)):
Reduces the size of IP datagrams. The
router will compress IP datagram size when
initiating a tunnel. When the router works as a
responder, it will always accept compression.
Keep-Alive:
The router will keep this VPN connection
when this function is enabled. Used to
connect the remote node
and headquarters
or used for the remote dynamic IP address.
AH Hash Algorithm:
Enables
the
router
to
authenticate
IP
header to verify the integrity of the packets
transmitted through the tunnel.
NetBIOS Broadcast:
Ensures the passage of NetBIOS broadcast
packets. This facilitates the easy connection
with other Microsoft network, but it also
increases the amount of
traffic using this
VPN tunnel.
NAT Traversal:
Allows
IPSec
traffic
to
pass
through
devices that don’t support IPSec packets.
Recommended if your router is behind a
NATgateway.
Dead Peer Detection (DPD):
The router will regularly transmit HELLO/ACK
message packets to detect whether there is a
connection between the two ends of the VPN
tunnel. If one end is disconnected, the device
will disconnect the tunnel automatically and
then create a new connection. Users can
define the transmission time for each DPD
message packet.
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58
VPN
Linksys
VPN Passthrough
Enable VPN passthrough to allow VPN clients to pass through the router.
You can also disable the VPN passthrough to block VPN connection. Use the
Device Configuration > VPN > VPN Passthrough page to enable or disable VPN
passthrough.
NOTE:
Remember to click Save before leaving the page. You can also click Cancel to
undo the changes.
IPSec Pass Through:
If enabled, IPSec tunnel is allowed to pass through the
router.
PPTP Pass Through:
If enabled, PPTP is allowed to pass through the router.
L2TP Pass Through:
If enabled, L2TP is allowed to pass through the router.
PPTP Server
Use the Configuration > VPN > PPTP Server page to enable PPTP (Point-to-
Point Tunneling Protocol) VPN tunnels for users who are running PPTP client
software on Microsoft Windows.
NOTE:
Remember to click Save before leaving the page. You can also click Cancel to
leave without any change.
Check the
Enable PPTP Server
box to allow PPTP VPN tunnels. Uncheck the
box to disable this feature. It is disabled by default.
IP Address Range
Range Start:
Enter the first address of LAN range to assign to the PPTP
VPN clients.
Range End:
Enter the final address of LAN range to assign to the PPTP
VPN clients.
The default range is 192.168.1.200 to 92.168.1.204. The LAN IP address range
for PPTP VPN clients should be outside of the normal DHCP range of the router.
PPTP Server
Add or edit the list of PPTP VPN users.
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59
VPN
Linksys
To add a user to the list:
Enter the information identified in NOTE
(below), and click Add to list.
To add another new user:
Enter the information identified in NOTE
(below), and click Add to list.
To modify a user on the
list:
Click the entry that you want to modify.
Make
changes, and click Update. If you do not need
to make changes, you can click Add New to
deselect the entry and clear the text fields.
To delete a user from the
list:
Click the entry that you want to delete. To
select a block of entries, click the first entry,
hold down the Shift key, and click the final
entry in the block. To select individual entries,
hold down the Ctrl key while clicking. Click
Delete.
NOTE
Username:
Enter a name.
New Password:
Enter a password.
Confirm New Password:
Re-enter the password.
Connection List
The following read-only information appears. You can click Refresh to update
the data.
Username:
Name of the PPTP VPN client.
Remote Address:
WAN IP address of the PPTP VPN client.
PPTP IP Address:
LAN IP address that the PPTP server assigned to the
client upon connection.
Page 64 / 77
60
EasyLink VPN
Linksys
60
EasyLink VPN
Summary
EasyLink VPN replaces the conventional complicated VPN setup process by
entering Server IP, User Name, and Password°
Go to Configuration > EasyLink VPN > Summary to see the summary page°
EasyLink VPN Server Status
Enable
Indicates whether EasyLink VPN server is
enabled or disabled° You can go to EasyLink
VPN Server setting page to change the
configuration°
Protocol
Indicates current EasyLink VPN handshaking
protocol°
Encryption/ Authentication/
DH Group
Indicates
encryption
/authentication/
DH
Group mode° For example, 3DES/ MD5/ Group
2 -1024 bit
Config°
Click the Edit icon to get into EasyLink VPN
Server setting page°
Inbound EasyLink VPN Status
Use the Rows per page list at the top right corner of the table to decide the
number of rules to display on each page and use the Page list to choose a
particular page°
Enable
Indicates whether the specified EasyLink VPN client is
enabled or disabled° You can go to Inbound EasyLink VPN
setting page to change the configuration°
Account
Indicates the user names of remote clients°
Status
The status of the tunnel: Connected or Waiting for
Connection°
Local Group
The setting for VPN connection secure group of the local
end°
Remote Gateway
The IP address of the Remote Gateway°
Remote Group
Setting for remote VPN connection secure group°
Tunnel Test
Click Connect to verify the tunnel status° The test result
will be updated°
To disconnect, click Disconnect to stop the VPN connection°
To delete tunnel settings, select a tunnel, and then click
the Delete icon°
Config
Click the Edit icon to get into Inbound EasyLink VPN
setting page° You can also click the trash can icon to delete
the client configuration°
You can also click on Add, below the EasyLink VPN client table, to configure a
new Inbound EasyLink VPN client (initiator)°
Outbound EasyLink VPN Status
Use the Rows per page list at the top right corner of the table to decide the
number of rules to display on each page and use the Page list to choose a
particular page°
Enable
Indicates whether the specified Outbound EasyLink VPN
is enabled or disabled° You can go to Outbound EasyLink
VPN setting page to change the configuration°
Account
The user names for linking to the remote EasyLink VPN
server°
Status
The status of the tunnel: Connected or Waiting for
Connection°
Local Group
The setting for VPN connection secure group of the local
end°
Remote Gateway
The IP address of the Remote Gateway°
Remote Group
The setting for remote VPN connection secure group°
Page 65 / 77
61
EasyLink VPN
Linksys
Tunnel Test
Click Connect to verify the tunnel status° The test result
will be updated° To disconnect, click Disconnect to stop
the VPN connection°
To delete tunnel settings, select a tunnel, and then click
the Delete icon°
Config
To disconnect, click Disconnect to stop the VPN
connection°
Inbound EasyLink VPN
This page allows the administrator to add a new inbound EasyLink VPN user
(intiator)° The role of the router is responder°
Go to EasyLink VPN > Inbound EasyLink VPN to add a new remote user
configuration°
NOTE:
Click Save before leaving the page or the configuration will be abandoned°
Click Cancel to undo the changes°
NOTE:
To edit an existing inbound Easylink VPN user, go to Easylink VPN summary
page and click the Edit icon of the corresponding VPN user°
Add a New Account
VPN Role
Indicates the role of the router is Responder°
Enable
Indicates whether the specified inbound EasyLink
VPN account is enabled or disabled°
Account Name
The username of remote user°
Password
The user password of remote user°
Authentication Port
Indicates authentication port°
Local Security Group
Type
Local security group type is Subnet°
IP Address
Input LAN IP address of the router°
Subnet Mask
Input subnet mask of the router°
Outbound EasyLink VPN
This page will introduce how to configure outbound EasyLink VPN° The role of
the router is a tunnel initiator°
The router only supports one outbound Easylink VPN connection°
Go to EasyLink VPN > Outbound EasyLink VPN to configure°
NOTE:
Click Save before leaving the page or the configuration will be abandoned°
Click Cancel to undo the changes°
Edit Account
VPN Role
Indicates the role of the router is Initiator°
Enable
Check to enable outbound Easylink VPN connection
or uncheck to disable°
Account Name
Input the username to make an outbound Easylink
VPN connection°
Password
Input the required password to make an outbound
Easylink VPN connection°
Primary Server
Input the IP address of remote server°
Secondary Server
Input the IP address of secondary remote server°
Authentication Port
Select the authentication port°
Keep Alive
Check the box to enable Keep Alive°
Local Security Group
Type
Indicates local security type as Subnet°
IP Address
Input local IP address°
Subnet Mask
Input local subnet mask°

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