Remote Connections

1
Remote Connections

• Chapter 11
• Lecture 1

2
Configuring Remote Connections

• Different with each brand of OS
• Windows
• Linux
• Macintosh
• Same info required for each

3
Information Required

• Physical connection
• Protocols
• Software

4
Physical Connections

• PSTN/POTS direct connection
• DSL Internet
• ISDN direct connection
• Cable Internet
• Satellite Internet

5
Protocols

• Common protocols between client and server.
• Two types of protocols required for remote
  connection.
• Data link layer protocols establish connection
• PPP
• authentication between devices
• Encryption
• PPPoE over Ethernet
• Users with cable or DSL connect to high speed
  network
• ISP assigns IP address, SN mask, gateway, DNS
  server
• Transport/Network layer protocols
• TCP/IP
• IPX/SPX
• Signal transmissions

6
Software

• required to establish contact with remote server
• Client-side Windows Dial-up networking
• Server-side Windows Remote Access Server

7
Dial-up Access

• One of the most popular methods of gaining remote
  access
• Manually established connection
• POTS
• VPN virtual private network

8
Dial-up Access Configuration

• Phone number
• Host name or IP address
• Transmission protocol
• NETBEUI
• TCP/IP
• IPX/SPX
• Security
• Authentication info
• Client-options
• Redial
• Disconnect time

9
Troubleshooting Remote Access

• Verify remote server is operational
• Ping the server
• Call administrator
• Verify authentication info
• is CAPS LOCK on?
• Verify phone and IP address of server
• Verify local settings
• Protocol
• Ipconfig /all
• Security

10
Choosing a NIC

• PC bus compatibility
• PCI peripheral component interconnect
• ISA industry standard architecture
• Type of network
• Ethernet
• Token ring
• Media
• Coax?
• Cat 5e?
• Fiber?

11
Installing NIC

• Insert into available expansion slot
• Screw into place
• Plug and play Windows
• Otherwise, configure IRQ setting
• Input/Output address
• Driver software required
• Download from manufacturer
• TR configure speed
• 4 Mbps
• 16 Mbps

12
Connect PC to Network

• Twisted pair
• Connect patch cable to port/hub/switch
• Speed
• Usually auto-detect can be done manually
• 10 Mbps
• 100 Mbps
• 1000 Mbps/1 Gbps
• Full duplex
• Usually auto detect

13
Testing and Troubleshooting NIC

• Is it installed correctly?
• Ping loopback address 127.0.0.1
• Device Mgr.
• Green light on NIC
• Diagnostic s/w provided by manufacturer
• Is the protocol configured
• TCP/IP
• IP address
• Obtain automatically
• Static
• SN Mask
• Default gateway
• WINS/DNS info
• -optional
• IPX/SPX
• Frame type 802.2
• autodetect
• NWLink
• Allows Windows/Netware communications

14
Default Gateway

• Allows the node to communicate outside of its
  network segment
• Port IP address of a router usually

15
DNS Server

• Allows dynamic host-name resolution
• Use two server addresses for fault tolerance

16
WINS Server

• Enables NetBIOS names to be resolved to IP
  addresses.
• Use two server addresses for fault tolerance