Cisco Semester
3 Threaded Case Study |
IP Schema
| Mountain Sky | 10 | . | 49 | . | 0 | . | 0 | - | 10 | . | 51 | . | 0 | . | 0 | |||||||||||||
| IP Address | Subnet Mask | Notes | ||||||||||||||||||||||||||
| Admin Network | 10 | . | 49 | . | 0 | . | 0 | 255 | . | 255 | . | 0 | . | 0 | Administrative Network | |||||||||||||
| Router Interface | 10 | . | 49 | . | 0 | . | 1 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Firewall Interface 1 | 10 | . | 49 | . | 0 | . | 2 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Firewall Interface 2 | 10 | . | 49 | . | 0 | . | 3 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Firewall Interface 3 | 10 | . | 49 | . | 0 | . | 4 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 1 | 10 | . | 49 | . | 0 | . | 5 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 2 | 10 | . | 49 | . | 0 | . | 6 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 3 | 10 | . | 49 | . | 0 | . | 7 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Admin Computers | ||||||||||||||||||||||||||||
| Admin Computer 1 | 10 | . | 49 | . | 2 | . | 1 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 2 | 10 | . | 49 | . | 2 | . | 2 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 3 | 10 | . | 49 | . | 2 | . | 3 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 4 | 10 | . | 49 | . | 2 | . | 4 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 5 | 10 | . | 49 | . | 2 | . | 5 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 6 | 10 | . | 49 | . | 2 | . | 6 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 7 | 10 | . | 49 | . | 2 | . | 7 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 8 | 10 | . | 49 | . | 2 | . | 8 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 9 | 10 | . | 49 | . | 2 | . | 9 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 10 | 10 | . | 49 | . | 2 | . | 10 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 11 | 10 | . | 49 | . | 2 | . | 11 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 12 | 10 | . | 49 | . | 2 | . | 12 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 13 | 10 | . | 49 | . | 2 | . | 13 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 14 | 10 | . | 49 | . | 2 | . | 14 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 15 | 10 | . | 49 | . | 2 | . | 15 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 16 | 10 | . | 49 | . | 2 | . | 16 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 17 | 10 | . | 49 | . | 2 | . | 17 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 18 | 10 | . | 49 | . | 2 | . | 18 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 19 | 10 | . | 49 | . | 2 | . | 19 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 20 | 10 | . | 49 | . | 2 | . | 20 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 21 | 10 | . | 49 | . | 2 | . | 21 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 22 | 10 | . | 49 | . | 2 | . | 22 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 23 | 10 | . | 49 | . | 2 | . | 23 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 24 | 10 | . | 49 | . | 2 | . | 24 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 25 | 10 | . | 49 | . | 2 | . | 25 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 26 | 10 | . | 49 | . | 2 | . | 26 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 27 | 10 | . | 49 | . | 2 | . | 27 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 28 | 10 | . | 49 | . | 2 | . | 28 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 29 | 10 | . | 49 | . | 2 | . | 29 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 30 | 10 | . | 49 | . | 2 | . | 30 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 31 | 10 | . | 49 | . | 2 | . | 31 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 32 | 10 | . | 49 | . | 2 | . | 32 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 33 | 10 | . | 49 | . | 2 | . | 33 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 34 | 10 | . | 49 | . | 2 | . | 34 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 35 | 10 | . | 49 | . | 2 | . | 35 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 36 | 10 | . | 49 | . | 2 | . | 36 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 37 | 10 | . | 49 | . | 2 | . | 37 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 38 | 10 | . | 49 | . | 2 | . | 38 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 39 | 10 | . | 49 | . | 2 | . | 39 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 40 | 10 | . | 49 | . | 2 | . | 40 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 41 | 10 | . | 49 | . | 2 | . | 41 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 42 | 10 | . | 49 | . | 2 | . | 42 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 43 | 10 | . | 49 | . | 2 | . | 43 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 44 | 10 | . | 49 | . | 2 | . | 44 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 45 | 10 | . | 49 | . | 2 | . | 45 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 46 | 10 | . | 49 | . | 2 | . | 46 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 47 | 10 | . | 49 | . | 2 | . | 47 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 48 | 10 | . | 49 | . | 2 | . | 48 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 49 | 10 | . | 49 | . | 2 | . | 49 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 50 | 10 | . | 49 | . | 2 | . | 50 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 51 | 10 | . | 49 | . | 2 | . | 51 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 52 | 10 | . | 49 | . | 2 | . | 52 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 53 | 10 | . | 49 | . | 2 | . | 53 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 54 | 10 | . | 49 | . | 2 | . | 54 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 55 | 10 | . | 49 | . | 2 | . | 55 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 56 | 10 | . | 49 | . | 2 | . | 56 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 57 | 10 | . | 49 | . | 2 | . | 57 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 58 | 10 | . | 49 | . | 2 | . | 58 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 59 | 10 | . | 49 | . | 2 | . | 59 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 60 | 10 | . | 49 | . | 2 | . | 60 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 61 | 10 | . | 49 | . | 2 | . | 61 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 62 | 10 | . | 49 | . | 2 | . | 62 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 63 | 10 | . | 49 | . | 2 | . | 63 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 64 | 10 | . | 49 | . | 2 | . | 64 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 65 | 10 | . | 49 | . | 2 | . | 65 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 66 | 10 | . | 49 | . | 2 | . | 66 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 67 | 10 | . | 49 | . | 2 | . | 67 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 68 | 10 | . | 49 | . | 2 | . | 68 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 69 | 10 | . | 49 | . | 2 | . | 69 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 70 | 10 | . | 49 | . | 2 | . | 70 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 71 | 10 | . | 49 | . | 2 | . | 71 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 72 | 10 | . | 49 | . | 2 | . | 72 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 73 | 10 | . | 49 | . | 2 | . | 73 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 74 | 10 | . | 49 | . | 2 | . | 74 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Computer 75 | 10 | . | 49 | . | 2 | . | 75 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Printers | ||||||||||||||||||||||||||||
| Admin Printer 1 | 10 | . | 49 | . | 1 | . | 1 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Admin Printer 2 | 10 | . | 49 | . | 1 | . | 2 | 255 | . | 255 | . | 0 | . | 0 | Manually Configured | |||||||||||||
| Student Network | 10 | . | 50 | . | 0 | . | 0 | 255 | . | 255 | . | 0 | . | 0 | Curriculum Network | |||||||||||||
| Router Interface | 10 | . | 50 | . | 0 | . | 1 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Firewall Interface 1 | 10 | . | 50 | . | 0 | . | 2 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Firewall Interface 2 | 10 | . | 50 | . | 0 | . | 3 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Firewall Interface 3 | 10 | . | 50 | . | 0 | . | 4 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 1 | 10 | . | 50 | . | 0 | . | 5 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 2 | 10 | . | 50 | . | 0 | . | 6 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 3 | 10 | . | 50 | . | 0 | . | 7 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Server 4 | 10 | . | 50 | . | 0 | . | 8 | 255 | . | 255 | . | 0 | . | 0 | Manually configured | |||||||||||||
| Student Computers | 10 | . | 50 | . | 2 | . | 1 | 255 | . | 255 | . | 0 | . | 0 | DHCP Determined | |||||||||||||
| (range upto 1056) | 10 | . | 50 | . | 6 | . | 254 | 255 | . | 255 | . | 0 | . | 0 | DHCP Determined | |||||||||||||
| Printers | ||||||||||||||||||||||||||||
| Student Printer 1 | 10 | . | 50 | . | 1 | . | 1 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 2 | 10 | . | 50 | . | 1 | . | 2 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 3 | 10 | . | 50 | . | 1 | . | 3 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 4 | 10 | . | 50 | . | 1 | . | 4 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 5 | 10 | . | 50 | . | 1 | . | 5 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 6 | 10 | . | 50 | . | 1 | . | 6 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 7 | 10 | . | 50 | . | 1 | . | 7 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 8 | 10 | . | 50 | . | 1 | . | 8 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 9 | 10 | . | 50 | . | 1 | . | 9 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 10 | 10 | . | 50 | . | 1 | . | 10 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 11 | 10 | . | 50 | . | 1 | . | 11 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 12 | 10 | . | 50 | . | 1 | . | 12 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 13 | 10 | . | 50 | . | 1 | . | 13 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 14 | 10 | . | 50 | . | 1 | . | 14 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 15 | 10 | . | 50 | . | 1 | . | 15 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 16 | 10 | . | 50 | . | 1 | . | 16 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 17 | 10 | . | 50 | . | 1 | . | 17 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 18 | 10 | . | 50 | . | 1 | . | 18 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 19 | 10 | . | 50 | . | 1 | . | 19 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 20 | 10 | . | 50 | . | 1 | . | 20 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 21 | 10 | . | 50 | . | 1 | . | 21 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 22 | 10 | . | 50 | . | 1 | . | 22 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 23 | 10 | . | 50 | . | 1 | . | 23 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 24 | 10 | . | 50 | . | 1 | . | 24 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 25 | 10 | . | 50 | . | 1 | . | 25 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 26 | 10 | . | 50 | . | 1 | . | 26 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 27 | 10 | . | 50 | . | 1 | . | 27 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 28 | 10 | . | 50 | . | 1 | . | 28 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 29 | 10 | . | 50 | . | 1 | . | 29 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 30 | 10 | . | 50 | . | 1 | . | 30 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 31 | 10 | . | 50 | . | 1 | . | 31 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 32 | 10 | . | 50 | . | 1 | . | 32 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 33 | 10 | . | 50 | . | 1 | . | 33 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 34 | 10 | . | 50 | . | 1 | . | 34 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 35 | 10 | . | 50 | . | 1 | . | 35 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 36 | 10 | . | 50 | . | 1 | . | 36 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 37 | 10 | . | 50 | . | 1 | . | 37 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 38 | 10 | . | 50 | . | 1 | . | 38 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 39 | 10 | . | 50 | . | 1 | . | 39 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 40 | 10 | . | 50 | . | 1 | . | 40 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 41 | 10 | . | 50 | . | 1 | . | 41 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 42 | 10 | . | 50 | . | 1 | . | 42 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 43 | 10 | . | 50 | . | 1 | . | 43 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
| Student Printer 44 | 10 | . | 50 | . | 1 | . | 44 | 255 | . | 255 | . | 0 | . | 0 | Reserved by DHCP | |||||||||||||
IP Addressing Key
| xxx. | xxx. | xxx. | xxx. |
| 10. | 49. | 0. | 1 |
| Network Address | Subnet Address |
Device type identifier | Host Address |
| Subnet Address (Network Identifier) | |||
| 49. | Admin Network | ||
| 50. | Student Network | ||
| 51. | Unused | ||
| Device Type ID | |||
| .0 | Network devices and servers eg. Routers | ||
| .1 | Netwrok Printers and other devices | ||
| .2 to .6 | Computers | ||
| Host Address | |||
| Either manully inputed, reserved by DHCP or determined by DHCP | |||