Chapter 2 Getting started 31Nortel VPN Router Configuration — Basic FeaturesThe Nortel VPN Router supports the Internetwork Packet Exchange (IPX)protocol. This allows the Nortel VPN Router to transmit and receive IPX packetsover PPTP.The Nortel VPN Router supports IPX by encapsulating IPX traffic within IPtunnels over PPTP. The private interfaces and public interfaces can carry IP andIPX traffic simultaneously. The IPX addresses are not shown in the precedingillustration.Management virtual addressThe management virtual address (MVA) is a reserved circuitless IP (CLIP)address. The MVA is a unique CLIP address that is used only for management andis separate from other CLIP addresses. Using a CLIP address ensures that there isno dependency on any particular physical interface. This eliminates a single pointof failure. As long as there is a route through an interface to the MVA, you canmanage the Nortel VPN Router. Access to the MVA is supported on a publicinterface through a VPN tunnel.The following management protocols are available for MVA from the private side:• HTTP• HTTPS• SNMP• FTP• Telnet10.2.1.23 DHCP-assigned IP address for a remote user10.8.4.6 Sample remote user static IP address: Profiles > Users Edit10.2.4.56 Sample client-specified address: Profiles > Groups Edit IPsec/PPTP/L2TP/L2FNote: PPTP supports IPX traffic only for remote access connections.IPX is not supported in branch office tunnels.Table 1 Sample IP addressing associations (continued)
