IP address of access point

[gtonev]

Hello!
Generally, it is not a problem to get the MAC address of the access point to which my wireless PC card is associated, but I am having trouble to figure the IP address of the access point (from inside a program). I tried sending RARP packets, which I know are delivered to the target (AP, Linux box, Solaris workstation), but non of these sends a RARP reply.
Can anyone help with this. I need either to fix the RARP approach or to find some other way to get the IP address of the access point.

regards
joro

 

[hungerf5]

The Cisco Aironet 350 comes with a utility called IPSU (IP Setup Utility). You key in the mac and the unit will respond with an IP.

--Rick

 

[jimbopalmer]

My Router has an ARP table in it, it maps MAC to IP, for all active devices The one thing you can't give for your heart's desire is your heart. - Lois McMaster Bujold

 

[Guest_imported]

http://www.cisco.com/pcgi-bin/Softw...ebuild.pl/aironet-utils-win&isChild=&appName=

Using the IP Setup Utility
The IP Setup utility (IPSU) allows you to find the access point's IP address when it has been assigned by a DHCP server. You can also use IPSU to set the access point's IP address and SSID if they have not been changed from the default settings.


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Note IPSU can be used only on the following operating systems: Windows 95, 98, NT, 2000, ME, or XP. For other operating systems, you must use the access point console port and a terminal emulator program to configure the access point.

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The sections below explain how to install the utility, how to use it to find the access point's IP address, and how to use it to set the IP address and the SSID.

Obtaining and Installing IPSU
IPSU is available on the Cisco web site. Follow these steps to obtain and install IPSU:


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Step 1 Use your Internet browser to access the Cisco Software Center at the following URL:

http://www.cisco.com/public/sw-center/sw-wireless.shtml

Step 2 Locate the access point utilities section and click on your access point series, such as Cisco Aironet 1200 Series.

Step 3 Click on the file, IPSUvxxxxx.exe. The vxxxxxx identifies the software package version number.

Step 4 Read and accept the terms and conditions of the Software License Agreement.

Step 5 Download and save the file to a temporary directory on your hard drive and then exit the Internet browser.

Step 6 Double-click IPSUvxxxxxx.exe in the temporary directory to expand the file.

Step 7 Double-click Setup.exe and follow the steps provided by the installation wizard to install IPSU.

The IPSU icon appears on your computer desktop.


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Finding the Access Point's IP Address
If your access point receives an IP address from a DHCP server, you can use IPSU to find its IP address. You must run IPSU from a computer on the same subnetwork as the access point. Follow these steps to find the access point's IP address:


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Step 1 Double-click the IPSU icon on your computer desktop to start the utility. The IPSU screen appears (see Figure 3-1).


Figure 3-1: IPSU Get IP Address Screen




Step 2 When the utility window opens, make sure the Get IP addr radio button in the Function box is selected.

Step 3 Enter the access point's MAC address in the Device MAC ID field. The access point's MAC address is printed on the label on the bottom of the unit. It should contain six pairs of hexadecimal digits. Your access point's MAC address might look like the following example:

000164xxxxxx


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Note The MAC address field is not case-sensitive.

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Step 4 Click Get IP Address.

Step 5 When the access point's IP address appears in the IP Address field, write it down.

If IPSU reports that the IP address is 10.0.0.1, the default IP address, then the access point did not receive a DHCP-assigned IP address. To change the access point IP address using IPSU, refer to the "Setting the Access Point's IP Address and SSID" section. To change the access point IP address using the console port, refer to the "Assigning Basic Settings" section.


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Setting the Access Point's IP Address and SSID
If you want to change the default IP address of the access point, you can use IPSU. You can also set the access point's SSID at the same time.


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Note The computer you use to assign an IP address to the access point must have an IP address of its own.

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Note IPSU can change the access point's IP address and SSID only from their default settings. After the IP address and SSID have been changed, IPSU cannot change them again (see the "Using an Internet browser" section 3-6 or the "Using a Terminal Emulator" section.)

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Follow these steps to assign an IP address and an SSID to the access point:


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Step 1 Double-click the IPSU icon on your computer desktop to start the utility.

Step 2 Click the Set Parameters radio button in the Function box (see Figure 3-2).


Figure 3-2: IPSU Set Parameters Screen




Step 3 Enter the access point's MAC address in the Device MAC ID field. The access point's MAC address is printed on the label on the bottom of the unit. It should contain six pairs of hexadecimal digits. Your access point's MAC address might look like the following example:

004096xxxxxx


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Note The MAC address field is not case-sensitive.

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Step 4 Enter the IP address you want to assign to the access point in the IP Address field.

Step 5 Enter the SSID you want to assign to the access point in the SSID field.


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Note You cannot set the SSID without also setting the IP address. However, you can set the IP address without setting the SSID.

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Step 6 Click Set Parameters to change the access point's IP address and SSID settings.

Step 7 Click Exit to exit IPSU.

 

[DefinityCorporation]

What about "arp -s x.x.x.x aa-aa-aa-aa-aa-aa" ?
Then you dont have to bother with the IP, you just modify the local cache.