Duplicate IP on interface MGT

About the 2 MGMT IP's:

besides the dedicated MGMT interface, you may be using a Self-IP for management.

in your example, the old and "new" IP's are the same: 10.220.69.61. is that right?

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About the MGMT stopping working:

try running "tmsh save sys config" after changing the IP's.

See what the MGMT config looks like under bigip_base.conf.

Old IP: 10.220.69.61 MAC f4-15-63-f6-63-00 New IP: 10.220.69.70 MAC f4-15-63-f6-63-02

when old ip 61: sometime can not ssh change to 70: always ssh to device via ip 70. Still can ping ip 61.

I was typed wrong. But how can I check why two IP can remained on interface mgt and how to delete it. I have check the bigip_base.conf but I see nothing helpful.

which IP do you see on bigip_base.conf? 61 or 70?

I see these config: cm device xxxxxxxxxxxxxxxxxx { active-modules { "Access Policy Manager, Base, i56XX|SLKSVRR-DTAHPWN|Anti-Virus Checks|Base Endpoint Security Checks|Firewall Checks|Network Access|Secure Virtual Keyboard|APM, Web Application|Machine Certificate Checks|Protected Workspace|Remote Desktop|App Tunnel" "Best Bundle, i5600|FTQBDVF-VGTSVWL|Rate Shaping|DNSSEC|DNS Services|SDN Services|BIG-IP, DNS (Max)|Routing Bundle|Application Security Manager, i5XXX|Advanced Firewall Manager, i5XXX|GTM Licensed Objects, Unlimited|DNS Rate Fallback, Unlimited|DNS Licensed Objects, Unlimited|GTM Rate Fallback, (UNLIMITED)|DNS Rate Limit, Unlimited QPS|GTM Rate, Unlimited|CGN, BIG-IP, AFM ONLY|Max SSL, i5600|Protocol Security Manager|Max Compression, i5600" } base-mac f4:15:63:f6:63:00 build 0.0.1645 cert dtdi.crt chassis-id "xxxxxxxxxx " configsync-ip 192.168.101.1 edition Final failover-state active hostname HNDC-SF-F5BI7000S-01.VINECOM.VN key dtdi.key management-ip 10.220.69.61 marketing-name "BIG-IP i5600" mirror-ip 192.168.100.1 multicast-interface eth0

So what is it and how to change it on web UI ?

hold on...how are you changing the MGMT IP? are you working directly on the bigip config files? If you're not fully familiar with F5 config, you shouldn't be doing that.

To change the MGMT IP from the F5 webGUI, go to System >> Platform