Comment 4 for bug 1990028

Previous one missing offer and ack. Had to run two tcp-dumps to get both of them and here they are, manually combined:
```
13:15:22.049067 00:25:90:d5:bf:28 > Broadcast, ethertype IPv4 (0x0800), length 389: (tos 0x0, ttl 64, id 36734, offset 0, flags [none], proto UDP (17), length 375)
    0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 00:25:90:d5:bf:28, length 347, xid 0xe3b3075d, Flags [Broadcast] (0x8000)
          Client-Ethernet-Address 00:25:90:d5:bf:28
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message (53), length 1: Discover
            MSZ (57), length 2: 1464
            Parameter-Request (55), length 35:
              Subnet-Mask (1), Time-Zone (2), Default-Gateway (3), Time-Server (4)
              IEN-Name-Server (5), Domain-Name-Server (6), Hostname (12), BS (13)
              Domain-Name (15), RP (17), EP (18), RSZ (22)
              TTL (23), BR (28), YD (40), YS (41)
              NTP (42), Vendor-Option (43), Requested-IP (50), Lease-Time (51)
              Server-ID (54), RN (58), RB (59), Vendor-Class (60)
              TFTP (66), BF (67), GUID (97), Unknown (128)
              Unknown (129), Unknown (130), Unknown (131), Unknown (132)
              Unknown (133), Unknown (134), Unknown (135)
            GUID (97), length 17: 0.0.0.0.0.0.0.0.0.0.0.0.37.144.213.191.40
            NDI (94), length 3: 1.3.16
            ARCH (93), length 2: 7
            Vendor-Class (60), length 32: "PXEClient:Arch:00007:UNDI:003016"
            END (255), length 0
13:15:22.051339 00:25:90:d5:bf:28 > Broadcast, ethertype IPv4 (0x0800), length 383: (tos 0x0, ttl 64, id 36734, offset 0, flags [none], proto UDP (17), length 369)
    0.0.0.0.bootpc > 255.255.255.255.bootps: [no cksum] BOOTP/DHCP, Reply, length 341, xid 0xe3b3075d, Flags [Broadcast] (0x8000)
          Your-IP 192.168.5.139
          Server-IP 192.168.5.76
          Client-Ethernet-Address 00:25:90:d5:bf:28
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message (53), length 1: Offer
            BF (67), length 11: "snponly.efi"
            Unknown (253), length 4: 3232236876
            Classless-Static-Route (121), length 14: (169.254.169.254/32:192.168.5.100),(default:192.168.5.1)
            Domain-Name-Server (6), length 4: 10.0.1.1
            Lease-Time (51), length 4: 43200
            MTU (26), length 2: 1500
            Subnet-Mask (1), length 4: 255.255.255.0
            Default-Gateway (3), length 4: 192.168.5.1
            Server-ID (54), length 4: 192.168.5.1
            TFTP (66), length 12: "192.168.5.76"
            TFTP-Server-Address (150), length 4: 192.168.5.76
            PAD (0), length 0, occurs 4
            END (255), length 0
            PAD (0), length 0, occurs 4
13:15:25.574485 00:25:90:d5:bf:28 > Broadcast, ethertype IPv4 (0x0800), length 401: (tos 0x0, ttl 64, id 36735, offset 0, flags [none], proto UDP (17), length 387)
    0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 00:25:90:d5:bf:28, length 359, xid 0xe3b3075d, Flags [Broadcast] (0x8000)
          Client-Ethernet-Address 00:25:90:d5:bf:28
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message (53), length 1: Request
            Server-ID (54), length 4: 192.168.5.1
            Requested-IP (50), length 4: 192.168.5.139
            MSZ (57), length 2: 65280
            Parameter-Request (55), length 35:
              Subnet-Mask (1), Time-Zone (2), Default-Gateway (3), Time-Server (4)
              IEN-Name-Server (5), Domain-Name-Server (6), Hostname (12), BS (13)
              Domain-Name (15), RP (17), EP (18), RSZ (22)
              TTL (23), BR (28), YD (40), YS (41)
              NTP (42), Vendor-Option (43), Requested-IP (50), Lease-Time (51)
              Server-ID (54), RN (58), RB (59), Vendor-Class (60)
              TFTP (66), BF (67), GUID (97), Unknown (128)
              Unknown (129), Unknown (130), Unknown (131), Unknown (132)
              Unknown (133), Unknown (134), Unknown (135)
            GUID (97), length 17: 0.0.0.0.0.0.0.0.0.0.0.0.37.144.213.191.40
            NDI (94), length 3: 1.3.16
            ARCH (93), length 2: 7
            Vendor-Class (60), length 32: "PXEClient:Arch:00007:UNDI:003016"
            END (255), length 0
13:15:25.577236 00:25:90:d5:bf:28 > Broadcast, ethertype IPv4 (0x0800), length 383: (tos 0x0, ttl 64, id 36735, offset 0, flags [none], proto UDP (17), length 369)
    0.0.0.0.bootpc > 255.255.255.255.bootps: [no cksum] BOOTP/DHCP, Reply, length 341, xid 0xe3b3075d, Flags [Broadcast] (0x8000)
          Your-IP 192.168.5.139
          Server-IP 192.168.5.76
          Client-Ethernet-Address 00:25:90:d5:bf:28
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message (53), length 1: ACK
            BF (67), length 11: "snponly.efi"
            Unknown (253), length 4: 3232236876
            Classless-Static-Route (121), length 14: (169.254.169.254/32:192.168.5.100),(default:192.168.5.1)
            Domain-Name-Server (6), length 4: 10.0.1.1
            Lease-Time (51), length 4: 43200
            MTU (26), length 2: 1500
            Subnet-Mask (1), length 4: 255.255.255.0
            Default-Gateway (3), length 4: 192.168.5.1
            Server-ID (54), length 4: 192.168.5.1
            TFTP (66), length 12: "192.168.5.76"
            TFTP-Server-Address (150), length 4: 192.168.5.76
            PAD (0), length 0, occurs 4
            END (255), length 0
            PAD (0), length 0, occurs 4
13:15:25.583787 00:25:90:d5:bf:28 > 72:c6:6f:05:c7:78, ethertype IPv4 (0x0800), length 100: (tos 0x0, ttl 64, id 36736, offset 0, flags [none], proto UDP (17), length 86)
    192.168.5.139.els > 192.168.5.76.tftp: [udp sum ok] TFTP, length 58, RRQ "snponly.efiM-}^DM-@M-(^ELy^N M-)M-~M-)M-~M-@M-(^Ed" octet tsize 0 blksize 1468
```