Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Spidey_29396's avatar
Spidey_29396
Icon for Nimbostratus rankNimbostratus
Sep 15, 2015

'tmsh load sys config' vs 'tmsh save sys config'

Hi All,   I can't find good articles regarding the difference between "tmsh load sys config" and "tmsh save sys config". Hoe some could elaborate the difference and use of the 2 commands.Thank you...
application delivery
LTM
TMSH
boneyard's avatar
boneyard
Icon for MVP rankMVP
Sep 15, 2015

ok, it might have been wiser to explain all that to start with.

i just tried what you described and for me it works. i edited the /config/bigip_base.conf file for the IP shown on ipconfig -a. do remember you might need to edit it twice if you use the IP also as name:

net self /Common/10.3.26.8 { <-- **here**
    address 10.3.26.8/24 <-- **here**
    allow-service none
    traffic-group /Common/traffic-group-local-only
    vlan /Common/ha
}

after a tmsh load sys config the ip address shown on ipconfig -a was different. it wasn't the one i changed it to but one of the other IPs i have on that interface. keep that in mind also, if you have multiple IPs on an interface / vlan ifconfig -a will just show one.