When Does Dial Vpn Tear Down The Tunnel - Bay Networks Baystream 7 Configuration And Troubleshooting Manual

Configuring and Troubleshooting Bay Dial VPN Services
Dial-up
user
3.1.1.X
Figure 2-6. Static Routes from a CPE Router to a Dial VPN Gateway
Data packets move back and forth between the remote node and the home network
through the established tunnel until the remote node disconnects from the Dial
VPN network or an error occurs. When either situation occurs, Dial VPN tears
down the tunnel.

When Does Dial VPN Tear Down the Tunnel?

Dial VPN tears down the tunnel when any of the following situations occurs:
•
•
•
•
If the NAS fails, all tunnel users are disconnected and the active user counts are
decremented. However, there is no quick way to determine when a NAS fails. The
logging connection may not be reset until after new tunnel users have connected.
When a NAS starts, one of the first things it does is open its ACP-logging
connection. When a new logging connection opens, TMS decrements the
2-18
BayDVS service
provider's network
Remote
Annex
Tunnel
The remote node using that tunnel disconnects
Either the NAS or TMS is not operating properly
Tunnel renewal fails
The administrator terminates the user connection
BayStream Multiservice Software Version 7.2
Gateway
DLCI = 101
RADIUS
Frame Relay
client
Static route
2.2.21
Frame Relay
port on gateway
Static route
1.1.1.2
Adjacent host/
3.1.1.0
next hop
Home/
corporate LAN
1.1.1.1
PVC
CPE
RADIUS
server
115623B Rev. 00
DVS0007A