Selecting Your Wan Protocol - Multitech ProxyServer MTPSR3-200 User Manual

Selecting your WAN Protocol

Before selecting your WAN protocol you must know what protocol your ISP uses. Most ISPs use
Point-to-Point Protocol (PPP), and if the ISP is capable of bonding the three WANs together for
increased bandwidth, they may be using MultiLink PPP (MLPPP) protocol. The other protocol an ISP
might be using is Serial Line IP (SLIP) -- an older protocol that is not as robust as PPP.
If PPP is the protocol the ISP is using, the User Names and Passwords may or may not be the same
depending on whether your ISP allows multiple sessions on the same User Name and Password.
If MLPPP is the protocol, then the User Names and Passwords must be identical; otherwise, analog
channel bonding will not occur.
If SLIP is the protocol of choice, manual authentication has to be performed using a script.
PPP is the default protocol. If PPP is the protocol being used, click on the User Name field and enter
your user name. Then click on Password field and enter your password.
If MLPPP is the protocol being used, from the PPP Port Setup dialog box, click on the Advanced
button and the PPP General Setup dialog box is displayed. Click on the MultiLink PPP (MLPPP)
option to enable MLPPP for all three WAN links. Click on the OK button to return to the PPP Port
Setup dialog box. Then enter a unique User Name and Password for all three WAN links. Click on the
OK button to return to the Proxy Setup dialog box.
If SLIP is being used, click on the PPP Enable option to disable PPP. The SLIP group then becomes
active. Click on the SLIP Enable option. Determine if the TCP header is going to be compressed
using VJC compression. If VJC compression is used, click on the CSLIP (Van Jacobson
Compression) option. SLIP requires that an authentication script be written when you are in the WAN
Port Setup dialog box. When you have SLIP configured for your network, click on the OK button to
return to the Proxy Setup dialog box.
MTPSR3-200
Chapter 4 - ProxyServer Software
27