Configuration

Top  Previous  Next

Before you start configuring Gibraltar with GibADMIN we will give you a quick overview about the user interface. While configuring Gibraltar, avoid using the Forward and the Back button of the browser. Nevertheless, if you use the buttons you will get a suitable message in GibADMIN.

 

Link

A link indicates a navigation to another page in GibADMIN and acts the same way as a link to another HTML page. Links can be found e.g. on the left side in the main menu.

 

Buttons

After clicking a button, a command is executed in the background; it e.g. stores the changes you made in the form. It is also possible to be redirected to another page by clicking a button (like a link). It is very important that you confirm any changes you made in a form by clicking a button so that the data can be saved permanently. The following buttons are available in GibADMIN:

 

help This button is located in the title of each module. By clicking such a button you get a context help for the form you are currently working on.

up This button is mostly located in an element group. You can move a row upwards in an element group. You find this option only in lists in which the ranking is important. After moving the row you have to click the button Save to store the settings.

down This button is mostly located in an element group.  You can move a row downwards in an element group. You find this button only in lists in which the ranking is important. After moving the row you have to click the button Save to store the settings.

delete This button is used for deleting of entries in lists. By clicking the button the entry in the labeled row gets deleted. Take care that only with clicking Save the entries get permanently deleted and the configuration file will be rewritten.

edit With this button you can alter into a detail mode for configuration. By clicking this button the labeled entry of the detail mode for configuration will be opened where you can alter configurations.

insert_below This button makes it possible to insert a new entry into the list below the selected entry. You find this button only in lists in which the ranking is important.

info This button is only used to show a personal comment for a list entry. If you move the mouse cursor above this button the information is shown in a yellow box. You can not click this button.

start This button is used to start services, devices or something else. You only see this button if the service or the device is stopped or in standby mode.

stop This button is used to stop services, devices or something else. You only see this button if the service or the device is started or in standby mode.

hourglass This button is used to change to the standby mode. An IPSec tunnel can be in standby mode if it is waiting for a start of the connection.

mail By clicking this button a form for sending mails will be opened.

download This button is used to download a file. Before storing the file you have to give a path for the storage.

 

Textfield

You have to make entries in a textfield to perform a certain configuration. Textfields are used if the entries can not be selected from a select box or another option. Every entry in a textfield is checked so that the value fits in a predefined context. For example if we have a field that should contain an IP address you are only allowed to put values like a.b.c.d, where a, b, c and d have to be between 0 and 255. If GibADMIN checks that you inserted a wrong value, a suitable error message is displayed and points at the textfield that caused the error.

 

Select Box

In a select box you can select a value out of a predefined range of values. This is possible if the values have been reducted unto some few predifined values.

 

Checkbox

A checkbox offers the possibility to choose between two states. That are decisions like yes/no or activated/deactivated. The checkbox is activated if a tick is in the checkbox. You can change the state by clicking the left mouse button on the checkbox.

 

Option field

Option fields are used when more possibilities are available from which only one can be selected. The current selected option field is marked with a black dot.

 

Element group

An element group is a kind of representation in GibADMIN, which allows to represent identical elements in a table. For every element in a list, a row will be created. Some register cards allow to configure the elements in the element group or to go to a detail form by clicking a button. In some element groups it's possible to delete more than one entry at the same time. If there appears a delete symbol delete in the heading line of the element group, you can delete several entries at once by marking the checkboxes in the rows you want to delete and afterwards clicking the button Delete marked entries delete in the heading line.

 

CIDR - Classless Inter-Domain Routing

GibADMIN uses the CIDR notation to enter IP addresses in conjunction with the subnet mask.

A CIDR address includes the standard 32-bit IP address and also information of how many bits are used for the network prefix. For example, in the CIDR address 192.168.0.1/24, the "/24" indicates the first 24 bits are used to identify the unique network leaving the remaining bits to identify the specific host. The last valid address of this network is consequently 192.168.0.254/24.

The CIDR block - this is the slash with the number - can have values from "/13" to "/27".

 

Some examples:

CIDR block

# Equivalent Class C

# of Host Addresses

/27

1/8 of a Class C

32

/25

1/2 of a Class C

128

/24

1 Class C

256

/16

256 Class C

65536

/13

2048 Class C

524288

 

255.255.0.0 corresponding /16

255.255.255.0 corresponding /24

255.255.255.192 corresponding /26