Caimore CM550-5 Series User Manual page 23

 Server: IP address or domain of PPTP server.
 Remote Subnet / Remote Mask: Intranet information on server side.
 Protocol: The way of PPTP to perform PPP authentication --
Pap: in this way, username and password are transmitted in clear text, the security
level of it is low.
Chap
MS-Chap
MS-Chap-V2
Any: it will take one of four approaches to verify.
 MPPE: Way to encrypt --
NoMppe: No encryption.
Mppe-(40|128)
Mppe-StateFul
 Add Default Route: If it's checked, then all the data passing through the router
will be sent to PPTP tunnel. Also means, all the devices connected to the router are
only allowed to access external network through PPTP tunnel.
 NAT: If it's checked, the devices connected to the router can access PPTP server
through the tunnel. If not, then these devices only can access server via Internet.
 Specify Local IP / Specify Peer IP: If PPTP server allows it, router can specify a
local tunnel IP address.
 Tunnel Check Interval / Tunnel Check Times: After tunnel is built, in order to
check tunnel state, router will send LCP packet to server in every tunnel check
interval. When the number of tunnel-checking failures over the value of "Tunnel
Check Times", router will initiate to terminate the connection and send a request to
rebuild the tunnel.
 Other Parameters: It's used in a situation where a special parameter is required to
negotiate when establishing a tunnel. In general, this parameter can be left in blank,
unless server is requiring a special negotiation parameter.
Format -- "novj;novjcomp", between each parameter should be separated by ";".
 Notice:
a. If "Add Default Route" is checked, please modify the parameters in "Keep
Online".
b. If your router is in LAN, please map the port 1723 to this router.
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