[root@di-striker01 os]# tcpdump -i bcn1_link1 'port tftp'
dropped privs to tcpdump
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on bcn1_link1, link-type EN10MB (Ethernet), capture size 262144 bytes
16:40:29.665880 IP 10.201.14.155.groupwise > di-striker01.tftp:  54 RRQ "BOOTX64.efi" octet tsize 0 blksize 1468 windowsize 4
16:40:29.670672 IP 10.201.14.155.prolink > di-striker01.tftp:  46 RRQ "BOOTX64.efi" octet blksize 1468 windowsize 4
16:40:29.750269 IP 10.201.14.155.darcorp-lm > di-striker01.tftp:  45 RRQ "grubx64.efi" octet blksize 512 windowsize 4
16:40:30.120121 IP 10.201.14.155.25300 > di-striker01.tftp:  60 RRQ "/grub.cfg-01-52-54-00-f4-48-43" octet blksize 1024 tsize 0
16:40:30.122252 IP 10.201.14.155.25301 > di-striker01.tftp:  48 RRQ "/grub.cfg-0AC90E9B" octet blksize 1024 tsize 0
16:40:30.123937 IP 10.201.14.155.25302 > di-striker01.tftp:  47 RRQ "/grub.cfg-0AC90E9" octet blksize 1024 tsize 0
16:40:30.125446 IP 10.201.14.155.25303 > di-striker01.tftp:  46 RRQ "/grub.cfg-0AC90E" octet blksize 1024 tsize 0
16:40:30.127271 IP 10.201.14.155.25304 > di-striker01.tftp:  45 RRQ "/grub.cfg-0AC90" octet blksize 1024 tsize 0
16:40:30.128921 IP 10.201.14.155.25305 > di-striker01.tftp:  44 RRQ "/grub.cfg-0AC9" octet blksize 1024 tsize 0
16:40:30.130593 IP 10.201.14.155.25306 > di-striker01.tftp:  43 RRQ "/grub.cfg-0AC" octet blksize 1024 tsize 0
16:40:30.132279 IP 10.201.14.155.25307 > di-striker01.tftp:  42 RRQ "/grub.cfg-0A" octet blksize 1024 tsize 0
16:40:30.133924 IP 10.201.14.155.25308 > di-striker01.tftp:  41 RRQ "/grub.cfg-0" octet blksize 1024 tsize 0
16:40:30.135630 IP 10.201.14.155.25309 > di-striker01.tftp:  39 RRQ "/grub.cfg" octet blksize 1024 tsize 0
16:40:30.137320 IP 10.201.14.155.25310 > di-striker01.tftp:  64 RRQ "/EFI/centos/x86_64-efi/command.lst" octet blksize 1024 tsize 0
16:40:30.138957 IP 10.201.14.155.25311 > di-striker01.tftp:  59 RRQ "/EFI/centos/x86_64-efi/fs.lst" octet blksize 1024 tsize 0
16:40:30.140463 IP 10.201.14.155.25312 > di-striker01.tftp:  63 RRQ "/EFI/centos/x86_64-efi/crypto.lst" octet blksize 1024 tsize 0
16:40:30.142048 IP 10.201.14.155.25313 > di-striker01.tftp:  65 RRQ "/EFI/centos/x86_64-efi/terminal.lst" octet blksize 1024 tsize 0
16:40:30.143540 IP 10.201.14.155.25314 > di-striker01.tftp:  39 RRQ "/grub.cfg" octet blksize 1024 tsize 0