A real PITA is to use the Console redirection of the integrated / optional iKVM of ASUS servers.

Access to the web-GUI (directly or even forwarded like 127.0.0.1:8080 tunneled through ssh to the iKVM's real ip behind a jump host) is quite straight-forward and easy to use.

But the console redirection slightly doesn't work even directly (server has the IP address you type in your web-browser) and with properly installed Java Web Start, at least with version 2.13 of the iKVM firmware.

So this workaround may help:
1. Log in to the Web-GUI

2. Start the Java console under Remote Control

3. Download the .jnlp file instead of opening Java Web Start directly
4. Edit the file as following:

<argument>127.0.0.1:8080</argument>
to
<argument>127.0.0.1</argument>

(for example if you have forwaded or mapped the real port 80 to
8080, this has to be only the IP address WITHOUT the port)

<argument>0</argument>
to
<argument>7578</argument>

(this has to be the port where the (local) Java Client will connect to the remote server's console and not '0', may also be another port when you do a port mapping or forwarding)

5. Now open the jviewer.jnlp file with Java Web Start.

The console should now show up...

(for all ports involved see the related link to the ASUS support site)

In some situations, there even the download of the JAVA files stucks with 0%. Perhaps then you experience some troubles with SSL because some INTEL ikvm will try to use HTTPS (even if you connect to the iKVM GUI with only HTTP). So use again a manually edited .jnlp file:

1. Download the jnlp file instead of opening directly

2. Change the line with the keyword codebase by replacing the "https://" with just "http://"

<jnlp spec="1.0+" codebase="http://<your_ikvm_ip>/Java" >

3. Open the jviewer.jnlp file with Java Web Start