Hi,
did you try this out please,
tmsh modify sys sshd include "MACs "
Caution:
include
Warning: Do not use this parameter without assistance from the F5 Technical Support team. The system does not
validate the commands issued using the include parameter. If you use this parameter incorrectly, you put the
functionality of the system at risk.
Also happened to check on the below,
file - /var/run/config/sshd_config
KexAlgorithms diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
MACS hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
F5 - these are FIPS approved ciphers.
Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc