Keep Alive - ZyXEL Communications Prestige 652H series User Manual
Adsl security/wireless lan router
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Also See for Prestige 652H series:
- User manual (523 pages) ,
- Compact manual (36 pages) ,
- Brochure (2 pages)
Table of Contents
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LABEL
Local Address
This is the IP address(es) of computer(s) on your local network behind your Prestige.
The same (static) IP address is displayed twice when the Local Address Type field in
the VPN-IKE (or VPN-Manual Key) screen is configured to Single.
The beginning and ending (static) IP addresses, in a range of computers are displayed
when the Local Address Type field in the VPN-IKE (or VPN-Manual Key) screen is
configured to Range.
A (static) IP address and a subnet mask are displayed when the Local Address Type
field in the VPN-IKE (or VPN-Manual Key) screen is configured to Subnet.
Remote
This is the IP address(es) of computer(s) on the remote network behind the remote
Address
IPSec router.
This field displays N/A when the Secure Gateway Address field displays 0.0.0.0. In this
case only the remote IPSec router can initiate the VPN.
The same (static) IP address is displayed twice when the Remote Address Type field in
the VPN-IKE (or VPN-Manual Key) screen is configured to Single.
The beginning and ending (static) IP addresses, in a range of computers are displayed
when the Remote Address Type field in the VPN-IKE (or VPN-Manual Key) screen is
configured to Range.
A (static) IP address and a subnet mask are displayed when the Remote Address Type
field in the VPN-IKE (or VPN-Manual Key) screen is configured to Subnet.
Encap.
This field displays Tunnel or Transport mode (Tunnel is the default selection).
IPSec Algorithm
This field displays the security protocols used for an SA.
Both AH and ESP increase Prestige processing requirements and communications
latency (delay).
Secure
This is the static WAN IP address or URL of the remote IPSec router. This field displays
Gateway IP
0.0.0.0 when you configure the Secure Gateway Address field in the VPN-IKE screen
to 0.0.0.0.
Back
Click Back to return to the previous screen.
16.6 Keep Alive
When you initiate an IPSec tunnel with keep alive enabled, the Prestige automatically renegotiates the tunnel
when the IPSec SA lifetime period expires (see section 16.11 for more on the IPSec SA lifetime). In effect,
the IPSec tunnel becomes an "always on" connection after you initiate it. Both IPSec routers must have a
Prestige-compatible keep alive feature enabled in order for this feature to work.
VPN Screens
Table 16-2 VPN Summary
DESCRIPTION
Prestige 652H/HW Series User's Guide
16-5
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Troubleshooting
