https://linux-faq.ru/page/komanda-hostid
Нужно создать /etc/hostid -> genhostid.py
#!/usr/bin/python
from sys import argv, exit
from struct import pack
filename = "/etc/hostid"
if len(argv) != 2:
print("Usage: genhostid.py <hostid>")
exit(1)
if argv[1].startswith("0x"):
hostid = int(argv[1][2:], 16)
else:
hostid = int(argv[1])
hostid = pack("I", hostid)
open(filename,"wb").write(hostid)
$ sudo python genhostid.py 0x00010203
Далее CiscoIOUKeygen3f.py