13.6.12  

Routing 
 

LAN-LAN and teleworking  
LAN-LAN connections, that is WAN connections, can be set up with HG 1500 to other HG 1500 and HiPath 3000 LAN-Bridge 1.x and other routers. Routing also enables access to Internet providers.
The IP Accounting feature describes the option of allocating Internet access costs on the basis of their origin according to the transferred quantity of data and the various tariff models stored in the application.
HG 1500 performs channel bundling: with HXGS3/HXGR3 and one PDM1 extension module, up to 16 B channels are possible. HiPath 3300/3350 offers a maximum of eight B channels at the CO.
IP is supported as the transport protocol.
In the case of HG 1500 with two LAN interfaces, routing is also possible between the two LAN interfaces.

Features  
 •   PPP connections (LAN-LAN connection and teleworking)
 •   PPP multilink connections (channel bundling)

Firewall mechanisms  
 •   Verification of MAC or IP addresses
 •   TCP, UDP and ICMP port firewall
 •   Access control using ISDN call numbers
 •   Automatic callback
 •   PAP (Password Authentication Protocol)
 •   CHAP (Challenge Handshake Authentication Protocol).
A teleworking station requires an ISDN card with remote access software (for example Dial-Up Networking). A network connection to HG 1500 is established via the ISDN card.
Access to the local networks can be established via the following connections:
 •   Analog V.34 (max. 33,600 bps)
 •   Analog V.90
 •   ISDN DSS1
 •   GSM V.110
 •   V.90 (max. 56,000 bps)

Routing with HG 1500  

 Figure 13-5   Routing with HG 1500