Can't use my No-ip hostname in "add raduis server ip field"

RouterOS General
1

Hello, I have a dynamic IP setup, No-ip, and want to use my hostname under the “new radius server” section, in winbox… my routerboard… but it only accepts IP’s, but I don’t have a static IP :open_mouth: so how can I fix this one?


This thread really didn’t help much tho..
http://forum.mikrotik.com/t/feture-request-hostname-compatibility-instead-of-ip-address/30152/1

[Resolved] Dynamic IP on Log Action
2

Use a script that looksup hostname every xx minutes and puts the IP address in the radius server field. There are plenty of examples for looking at around here.

3

I’ve found a script for No-Ip but ive got no idea what and where its going to put or change the updated IP

http://wiki.mikrotik.com/wiki/Dynamic_DNS_Update_Script_for_No-IP_DNS

4

That runs the dynamic ip service only. You need to script lookup hostname and put in radius field also. Two different things.

5

I’ve got noooo idea how its works mate

6

woow, I don’t think this scripts is going to work for me, why can I just type my no-ip-hostname is the IP field …lol, that would solve all my problems, and then the hostname wil get resolved by a DNS server

7

Mikrotik doesn’t work that way. You have to use a host lookup script.

Try searching the forums. This isn’t that uncommon a question.

For example, this will get you started:
http://forum.mikrotik.com/t/best-vpn-to-use-using-dynamic-dns/31582/1

8

http://nok5150.wordpress.com/2011/02/10/update-ip-script-mikrotik/

I’m going to try that one out.. :smiley:

I hope it works, because I don’t understand everything in the scrips. its all like a bunch of random code to me.

9

Copy and paste this into terminal, making sure to change the “myradiusserver.example.tld” and replacing it with your own radius server DNS name.

/system scheduler
add disabled=no interval=30m name=update-radius-server on-event=":local radiusname \"myradiusserver.example.tld\"\r\
    \n:local newradiusip [:resolve \$\"radiusname\"]\r\
    \n:local currentradiusip [/radius get 0 address]\r\
    \n:if (\$\"currentradiusip\" != \$\"newradiusip\") do={ /radius set 0 address=\$\"newradiusip\"}" policy=ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api start-time=startup

For ease of reading, if you’re doing it through winbox → system → scheduler the code is:

:local radiusname "myradiusserver.example.tld"
:local newradiusip [:resolve $"radiusname"]
:local currentradiusip [/radius get 0 address]
:if ($"currentradiusip" != $"newradiusip") do={ /radius set 0 address=$"newradiusip"}

And the script is set to run on startup then repeat every 30 minutes.

Hope this helps! :slight_smile:

10

Hello I tried this script and its not updating…

{

:local resolvedIP [:resolve “server.example.com”];
:local radiusID [/radius find comment=“myRad”];
:local currentIP [/radius get $radiusID address];

:if ($resolvedIP != $currentIP) do={
/radius set $radiusID address=$resolvedIP;
/log info “radius ip updated”;
}

}
help…