Chapter 2 Installation preparation 27Setting Up the BayStack Instant Internet 400 UnitInstallation checklistUse the checklist in Table 1 to ensure a smooth installation. As you check off eachitem, record the information in the “Installation worksheet” on page 29.Table 1 Installation checklist✔ Item DescriptionType of Account Instant Internet can provide access to your entire networkthrough a single Internet Protocol (IP) address forunlimited access to the Internet:• If you want to use public IP addresses, request anetwork account.• If you want to use Network Address Translation (NAT)or you are using the Instant Internet unit as anIPX-to-IP gateway, request a single-user account.Your ISP will provide you with a user name, password,primary access phone number, optional alternate accessphone number, and name server IP address. Record thisinformation on page 29.Dial-up Protocols If you are using a dial-up connection in North America,ensure that your ISP supplies true IP service using PPPprotocols for analog and ISDN connections. ISDNrequires the synchronous PPP protocol withauthentication via Password Authentication Protocol(PAP) or Challenge Handshake Authentication Protocol(CHAP).For a 128K connection, Multilink PPP must be supported.Some ISPs use their own proprietary protocols or, forISDN, V.120 rate adaption. Instant Internet does notsupport these proprietary protocols.ISDN Service When you obtain ISDN service, your telephone companymay assign one or two Service Profile Identifier (SPID)numbers to your line. Record the SPID number(s) onpage 29.Leased-LineConnectionLeased-line (T1, DDS, V.35, or X.21) connections requiresynchronous PPP or frame relay. The Instant Internet 400unit supports 1 PVC for frame relay.T1 Connection If you are using a T1 connection, ask your T1 serviceprovider for the framing format, line encoding, data type,line build-out, rate multiplier, and line speed. Record thisinformation on page 29.