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F5 BIG-IP 10.0.0 Build 5401.0 Final - need to re-ip config due to re-location

Hi,

We are re-locating all our equipment and whilst hostnames are not changing all IP addresses are. I've looked on this forum and have seen posts where this has been done before by editing files - I just wanted to see if this is a viable solution or if anyone has any other suggestions/method??

I'm hoping that if I just edit the following files (taking a backup copy first) with the new IP info prior to moving:

bigip_sys.conf bigip_local.conf bigip_base.conf bigip.conf

Then shut down F5 - move to new location and power up - it "should" start up using new IP addresses ..... or am I missing something?

Many thanks in anticipation :)

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Comment made 07-Sep-2017 by Abe 170

Another thought is to just update the ip and then shutdown (is the node ip; vip ips going to be same? ) {You should update that as well and then shutdown)

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Comment made 07-Sep-2017 by wilkes 2

Thanks for response. There are too many to do this manually, so I thought editing these files would be easier.

No node IP and VIP are different

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USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER

First, you need to be entirely consistent when editing IP addresses in the config files - make sure your VIP IP addresses match the appropriate changed self-ip address. You can make it work, but it may take some time.

Second, 10.0.0 is a really old version of BigIP software (out of support for 5 years). I'd strongly recommend rebuilding your configuration with a supported release (even a VE edition if your hardware is no longer supported).

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Comments on this Answer
Comment made 12-Sep-2017 by wilkes 2

Thanks for the response. Yes I agree it is a really old version of the software, unfortunately rebuilding is not an option (not my decision I'm afraid).

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Comment made 13-Sep-2017 by wilkes 2

Just another thought - would the license info be ok after the move?

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Comment made 13-Sep-2017 by S Blakely

The license information will not change, even if the IP addresses change.

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Comment made 14-Sep-2017 by wilkes 2

Thanks for the response - thats good to know. I'm just trying to pre-empt any other potential issues that might arise.

Thanks again!

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USER ACCEPTED ANSWER & F5 ACCEPTED ANSWER

In addition to the files you mentioned, IP addresses can be saved in certain system database entries (DNS or NTP servers, for example). You'll also need to review the /config/BigDB.dat file, maybe via a command like this:

egrep -B 1 'value=[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' /config/BigDB.dat

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Comments on this Answer
Comment made 07-Sep-2017 by wilkes 2

Many thanks for your response. If any entries are found in BigDB.dat would these need to be removed or changed? How would I do this?

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Comment made 08-Sep-2017 by CharlesCS 625

The need to modify any entries would depend on whether the IP address would be different in the new network configuration.

In general it's easier to change a DB entry via a command like this:

tmsh modify sys db <name of database entry> value <new value>

For example:

tmsh modify sys db NTP.Servers value 10.20.30.40

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Comment made 12-Sep-2017 by wilkes 2

Thanks for response. All of the IP addresses are changing, so after editing the aforementioned files, once we relocate the F5 unit and bring it up, I will then check BigDB.dat file.

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