User manual ZYXEL PRESTIGE 2602HWI

[. . . ] Prestige 2602HW Series ADSL VoIP IAD with 802. 11g Wireless User's Guide Version 3. 40 1/2005 Prestige 2602HW Series User's Guide Copyright Copyright © 2005 by ZyXEL Communications Corporation. The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation. Published by ZyXEL Communications Corporation. All rights reserved. Disclaimer ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. [. . . ] No signifies that this VPN policy is not active. 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. 204 Chapter 17 VPN Screens Prestige 2602HW Series User's Guide Table 60 VPN Summary (continued) LABEL Remote Address DESCRIPTION This is the IP address(es) of computer(s) on the remote network behind the remote 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. This field displays Tunnel or Transport mode (Tunnel is the default selection). Encap. 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 Gateway This is the static WAN IP address or URL of the remote IPSec router. This field IP displays 0. 0. 0. 0 when you configure the Secure Gateway Address field in the VPNIKE screen to 0. 0. 0. 0. Back Click Back to return to the previous screen. 17. 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 17. 12 on page 214 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. If the Prestige has its maximum number of simultaneous IPSec tunnels connected to it and they all have keep alive enabled, then no other tunnels can take a turn connecting to the Prestige because the Prestige never drops the tunnels that are already connected. Refer to Section 1. 3 on page 46 to see how many simultaneous IPSec SAs your Prestige model can support. When there is outbound traffic with no inbound traffic, the Prestige automatically drops the tunnel after two minutes. 17. 7 Remote DNS Server In cases where you want to use domain names to access Intranet servers on a remote network that has a DNS server, you must identify that DNS server. You cannot use DNS servers on the LAN or from the ISP since these DNS servers cannot resolve domain names to private IP addresses on the remote network Chapter 17 VPN Screens 205 Prestige 2602HW Series User's Guide The following figure depicts an example where three VPN tunnels are created from Prestige A; one to branch office 2, one to branch office 3 and another to headquarters. In order to access computers that use private domain names on the headquarters (HQ) network, the Prestige at branch office 1 uses the Intranet DNS server in headquarters. [. . . ] An attempt to register the listed SIP account with a SIP register server was not successful. The listed SIP account's registration was deleted from the SIP register server. An attempt to delete the listed SIP account's registration from the SIP register server failed. 502 Prestige 2602HW Series User's Guide Table 193 RTP Logs LOG MESSAGE Error, RTP init fail Error, Call fail: RTP connect fail Error, RTP connection cannot close DESCRIPTION The initialization of an RTP session failed. A VoIP phone call failed because the RTP session could not be established. [. . . ]