hoo2/Computer-Networks-II
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add experiment 1 results

Browse Source
This commit is contained in:
hoo2
2026-09-26 22:05:50 +03:00
parent ee4b144929
commit f9721224c9
4 changed files with 336 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
exercise/results/exp1-dhcp/dhcp-decoded.txt
+91
View File
@@ -0,0 +1,91 @@
10:58:29.655251 12:07:f8:bf:6e:ff > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 12:07:f8:bf:6e:ff, length 300, xid 0xecb5a2e, Flags [none] (0x0000)
Client-Ethernet-Address 12:07:f8:bf:6e:ff
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Hostname Option 12, length 10: "mininet-vm"
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Option 119, Hostname
Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route
NTP
10:58:29.655633 82:3b:16:e9:bb:17 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.131 tell 192.168.1.1, length 28
10:58:30.662723 82:3b:16:e9:bb:17 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.131 tell 192.168.1.1, length 28
10:58:31.687064 82:3b:16:e9:bb:17 > ff:ff:ff:ff:ff:ff, ethertype ARP (0x0806), length 42: Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.131 tell 192.168.1.1, length 28
10:58:32.214530 12:07:f8:bf:6e:ff > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 12:07:f8:bf:6e:ff, length 300, xid 0xecb5a2e, secs 3, Flags [none] (0x0000)
Client-Ethernet-Address 12:07:f8:bf:6e:ff
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Hostname Option 12, length 10: "mininet-vm"
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Option 119, Hostname
Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route
NTP
10:58:32.670822 82:3b:16:e9:bb:17 > 12:07:f8:bf:6e:ff, ethertype IPv4 (0x0800), length 62: (tos 0x0, ttl 64, id 28856, offset 0, flags [DF], proto ICMP (1), length 48)
192.168.1.1 > 192.168.1.131: ICMP echo request, id 21591, seq 0, length 28
10:58:32.670897 82:3b:16:e9:bb:17 > 12:07:f8:bf:6e:ff, ethertype IPv4 (0x0800), length 342: (tos 0xc0, ttl 64, id 52736, offset 0, flags [none], proto UDP (17), length 328)
192.168.1.1.67 > 192.168.1.131.68: [udp sum ok] BOOTP/DHCP, Reply, length 300, xid 0xecb5a2e, Flags [none] (0x0000)
Your-IP 192.168.1.131
Server-IP 192.168.1.1
Client-Ethernet-Address 12:07:f8:bf:6e:ff
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: 192.168.1.1
Lease-Time Option 51, length 4: 43200
RN Option 58, length 4: 21600
RB Option 59, length 4: 37800
Subnet-Mask Option 1, length 4: 255.255.255.0
BR Option 28, length 4: 192.168.1.255
Default-Gateway Option 3, length 4: 192.168.1.1
10:58:32.671193 12:07:f8:bf:6e:ff > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 342: (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 12:07:f8:bf:6e:ff, length 300, xid 0xecb5a2e, secs 3, Flags [none] (0x0000)
Client-Ethernet-Address 12:07:f8:bf:6e:ff
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Request
Server-ID Option 54, length 4: 192.168.1.1
Requested-IP Option 50, length 4: 192.168.1.131
Hostname Option 12, length 10: "mininet-vm"
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Option 119, Hostname
Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route
NTP
10:58:32.673025 82:3b:16:e9:bb:17 > 12:07:f8:bf:6e:ff, ethertype IPv4 (0x0800), length 342: (tos 0xc0, ttl 64, id 52738, offset 0, flags [none], proto UDP (17), length 328)
192.168.1.1.67 > 192.168.1.131.68: [bad udp cksum 0x851a -> 0x5896!] BOOTP/DHCP, Reply, length 300, xid 0xecb5a2e, secs 3, Flags [none] (0x0000)
Your-IP 192.168.1.131
Server-IP 192.168.1.1
Client-Ethernet-Address 12:07:f8:bf:6e:ff
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: ACK
Server-ID Option 54, length 4: 192.168.1.1
Lease-Time Option 51, length 4: 43200
RN Option 58, length 4: 21600
RB Option 59, length 4: 37800
Subnet-Mask Option 1, length 4: 255.255.255.0
BR Option 28, length 4: 192.168.1.255
Hostname Option 12, length 10: "mininet-vm"
Default-Gateway Option 3, length 4: 192.168.1.1
10:58:32.678132 82:3b:16:e9:bb:17 > 12:07:f8:bf:6e:ff, ethertype IPv4 (0x0800), length 342: (tos 0xc0, ttl 64, id 52737, offset 0, flags [none], proto UDP (17), length 328)
192.168.1.1.67 > 192.168.1.131.68: [udp sum ok] BOOTP/DHCP, Reply, length 300, xid 0xecb5a2e, secs 3, Flags [none] (0x0000)
Your-IP 192.168.1.131
Server-IP 192.168.1.1
Client-Ethernet-Address 12:07:f8:bf:6e:ff
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: 192.168.1.1
Lease-Time Option 51, length 4: 43200
RN Option 58, length 4: 21600
RB Option 59, length 4: 37800
Subnet-Mask Option 1, length 4: 255.255.255.0
BR Option 28, length 4: 192.168.1.255
Default-Gateway Option 3, length 4: 192.168.1.1
10:58:37.831406 82:3b:16:e9:bb:17 > 12:07:f8:bf:6e:ff, ethertype ARP (0x0806), length 42: Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.131 tell 192.168.1.1, length 28
10:58:37.831440 12:07:f8:bf:6e:ff > 82:3b:16:e9:bb:17, ethertype ARP (0x0806), length 42: Ethernet (len 6), IPv4 (len 4), Reply 192.168.1.131 is-at 12:07:f8:bf:6e:ff, length 28