Multitech RF500S Uživatelský manuál stáhnout pdf (Strana 43)

One of the reasons to convert from proxy based Internet sharing to NAT was to eliminate the need to

configure applications for each location. NAT is largely transparent to applications. The next three sections

describe the unique configuration required at each location. The forth section describes Netswitcher, the

program we use to switch between locations.

20.1 At the Office

The corporate network is an NT domain, running Windows 2000 on most of the systems. A few system like

my laptop run Windows 98.

Address Assignment

Mobile computers are assigned dynamic addresses from a DHCP server. All network parameters are

assigned automatically.

The Corporate network uses private IP addresses behind a Checkpoint firewall VPN server.

User Authentication

User authentication is by a NT domain server.

File Sharing

Network browsing was difficult to configure. None of the Win98 machines could browse the network. The

solution was to create a workgroup of one on the laptop and enable the browse master. Now the laptop can

see everything on the network and the laptop shows up in its own workgroup.

Commonly used shares are mapped as desktop shortcuts. The NT domain controller manages share access.

Printing

Print driver is installed for corporate network printers.

Time

Corporate clients determine current time by polling a local time server. Each client runs a daemon that

periodically polls the timeserver. This is a different method then used by the SOHO LAN. The daemon is

not installed. When on the corporate network the laptop free runs.

K9 is the companion client application to Tardis running on the SOHO LAN. It runs when the laptop is

connected to the corporate LAN but does not hear any NTP broadcasts.

E-mail

The Outlook mail client is configured with three accounts, account #1 is the ISP account for forwarded

corporate mail, account #2 is the Schmidt Consulting business account, and account #3 is another ISP

account. Since the laptop is a secondary mail reader, Outlook is configured to leave incoming mail on the

server. This allows the laptop to read mail without removing it from the mail server. When the primary

client accesses the mail server the message is removed. This is a little cumbersome if you have not accessed

mail from the primarily client for a while but it eliminates having to move mail between machines for

archival purposes.

Outgoing mail for all account configured to use the corporate SMTP mail server.

USENET News

The laptop uses the dialup ISP news server. Access from multiple service providers is not a problem

because the ISP requires user authentication to access news. This eliminates any restriction on how one

connects to the server.

Home Web page

Browser home page set to corporate public home page

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Multitech RF500S Uživatelský manuál Strana 43