Hi,

I have 450G which is in production, now I need to replace that router with 1100AH. What is the simplest way to copy existing configuration from one to antoher (from 450G to 1100AH). Can I use .backup file which is created on 450G? If i use .rsc I will need to modify some things (mac addresses....)

thanks

Use "/export compact" introduced in latest RouterOS version.

450G have v. 4.17, 1100AH 5.8. so i must upgrade 450G to 5.12 and than make /compact export? and after that copy/paste to 1100AH?

yes, 450 upgrade to 5.14 and then export compact

Beware the rb1100ah interface numbering may be different than the 450G. It was on v5.12

On 5.12,
/interface ethernet 0 is ether12
/interface ethernet 1 is ether13
/interface ethernet 2 is ether1

Had me confused for some time.

In the past I have moved .backup full configs between different models. It has usually worked correctly, but the eth and wireless interfaces do get messed up: I had to check one by one and rename them, check IP address assignments, check DCHP server settings, etc.

I have to check that /export compact command!