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The Washington School District

The Washington School District. Mike, Mark, Joy, Armando, & Mona. Overview. R E Miller, Acacia, Desert View, & Mountain Sky Class B Address WAN - PPP, Frame Relay, ISDN, OSPF LAN - Extended Star, TCP/IP, IGRP Security Cost. Addressing. Class B - 145.29.0.0

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The Washington School District

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  1. The Washington School District Mike, Mark, Joy, Armando, & Mona

  2. Overview • R E Miller, Acacia, Desert View, & Mountain Sky • Class B Address • WAN - PPP, Frame Relay, ISDN, OSPF • LAN - Extended Star, TCP/IP, IGRP • Security • Cost

  3. Addressing • Class B - 145.29.0.0 • VLANS for Administrative and Students • Administrative and network printers will be static • Students will use DHCP

  4. Class B 145.29.0.0 Subnet mask - 255.255.255.0 Used 8 bits for subnets (total usable 254) 8 Bits left for hosts/subnet (total usable 254) 145.29.1.0 - 145.29.10.0 Wan routers Desert View 145.29.20.0 - 145.29.24.0 E0=145.29.20.1 Admin Addresses 145.29.20.100 - 145.29.20.254 Students 145.29.21.0 Printers 145.29.22.0

  5. Acacia 145.29.25.0 - 145.29.29.0 E0=145.29.25.1 Admin Addresses 145.29.25.100 - 145.29.25.254 Students 145.29.26.0 Printers 145.29.27.0 Mountain Sky 145.29.30.0 - 145.29.34.0 E0=145.29.30.1 Admin Addresses 145.29.30.100 - 145.29.30.254 Students 145.29.31.0 Printers 145.29.32.0 RE Miller 145.29.35.0 - 145.29.39.0 E0=145.29.35.1 Admin Addresses 145.29.35.100 - 145.29.35.254 Students 145.29.36.0 Printers 145.29.37.0

  6. WAN • T1 using Frame Relay to the Internet • 4 T1’s between District Office, Shaw Butte, Service Center • upgrade to DS3 for growth • PPP • T1 from each school to its District hub • Backup TSU ESP • Each District hub will be an Area Border Router; this provides for the requirement of one AS number • Additional router at Data Center going to the Internet, along with access lists fulfills requirement for double firewall.

  7. Area Border Routers

  8. LAN • Gigabit Backbone • Fiber from MDF to each BLDG • Fiber from IDF to IDF and from MDF to IDF within building • Router connects WAN link (T1) and provides security and routing for VLANS

  9. LAN (cont’d) • MDF - switch with router capabilities • Server Central • DNS/DHCP • Email • Administrative • Student • Print • Application and CD Stack • Misc. - DLT Tape Drives, UPS, Racks

  10. LAN (cont’d) • IDF • 7 drops to each class • 28 ports - students (24), teacher (3), network printer (1) • 100Mbps to each node • full duplex

  11. RE Miller

  12. RE Miller

  13. RE Miller (cont’d)

  14. RE Miller (cont’d)

  15. Security • Administrative user ID and Password • VLANS • Access Lists

  16. VLANS • VLAN 1 - Administration • VLAN 2 - Students • Configure ports on switch for each VLAN • use ethernet sub interfaces - E0/1 • Configure uplinks to trunk each VLAN • Full duplex • Use Spanning Tree Protocol (STP) • creates a transparent switch

  17. VLANS (cont’d) • IGRP - AS#(Internet Assigned Numbers Authority) • Configure router with virtual interfaces • virtual ethernet sub interfaces must be configured to match switch ethernet sub interfaces • this is needed because of the 5500 series router/switch we are using

  18. Access Lists • Used for double firewall • WAN • use access lists to allow traffic from Internet and Intranet to access servers located in DMZ • examples: • access-list 101 permit tcp any any eq 80 in S1 • access-list 101 permit tcp any any eq 25 in S1 • access-list 101 permit tcp any any eq 53 in S1 • access-list 101 permit tcp any any eq 21 in S1 • access-list 101 deny tcp any any • access-list 101 deny udp any any • access-list 102 permit tcp any any eq 80 in E1 • access-list 102 permit tcp any any eq 25 in E1 • access-list 102 permit tcp any any eq 53 in E1 • access-list 102 permit tcp any any eq 21 in E1

  19. Access List - LAN • Access-list 105 deny tcp student subnet to administrative server and deny student access to administrative subnet • example: • access-list 105 deny tcp 145.29.21.0 255.255.0.255 145.29.20.22 255.255.0.0 • Access list 105 deny tcp 145.29.21.0 255.255.0.255 145.29.20.0.0 255.255.0.255 • access-list 105 permit any any • applied on E0 interface inbound

  20. Cost

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