-Q.
-> I try to install Access Point SNMP Config utility, but i can't find
-> menu.h file.
-> [root@server src]# make
-> gcc -O2 -Wall -c -o ap-cnf.o ap-cnf.c
-> ap-cnf.c:24:18: menu.h: No such file or directory
-> make: *** [ap-cnf.o] Error 1
-A.
+Q:
+I try to compile ap-utils, but it complains that it can't find the menu.h
+file:
+[root@server src]# make
+gcc -O2 -Wall -c -o ap-cnf.o ap-cnf.c
+ap-cnf.c:24:18: menu.h: No such file or directory
+make: *** [ap-cnf.o] Error 1
+
+A:
You need to install ncurses and ncurses-devel packages from your distro.
Or just build and install ncurses libs from sources.
-Q.
-> I bought a access point. Unfortunately, the
-> documentation does not have the default community string used by the
-> product. Do you know what it is, or where I could find it out?
-A.
-I'm give you default communities from my equipment, may be you may use
-it with your AP: "public", "private", "linksys".
-Also consult documentation to your AP.
-
-Q.
-> The wireless & ethernet stats are reset to zero each time I grab
-> the KnownAP signal and quality stats. The same issue happens when
-> performing KnownAP's running your AP-CNF program without modification.
-A.
-Because only way to see KnownAPs info its to put AP to client mode with master
-AP mac set to 0000000000. When setting this AP resets. Only one way to get
-signal and quality stats not resetting AP - its to get this stat from AP
-setted in client mode all time.
+Q:
+I try to compile ap-utils, but the compilation suddenly breaks with the
+following errors:
+gcc -DLOCALEDIR=\"/usr/local/share/locale\" -DHAVE_CONFIG_H -I../lib -I../intl -I.. -g -O2 -Wall -W -c bridge.c
+bridge.c:46: initializer element is not constant
+bridge.c:46: (near initialization for `bridge_modes[0]')
+bridge.c:47: initializer element is not constant
+bridge.c:47: (near initialization for `bridge_modes[1]')
+bridge.c:48: initializer element is not constant
+bridge.c:48: (near initialization for `bridge_modes[2]')
+bridge.c:49: initializer element is not constant
+bridge.c:49: (near initialization for `bridge_modes[3]')
+bridge.c:50: initializer element is not constant
+bridge.c:50: (near initialization for `bridge_modes[4]')
+bridge.c:52: initializer element is not constant
+bridge.c:52: (near initialization for `bridge_modes[5]')
+
+A:
+Your gettext is not up-to-date. You need to either update gettext package
+for your distro, or you'll need to completely disable NLS support for
+ap-utils by appending '--disable-nls' to configure. If you do so,
+the compilation may still end with an error like this:
+
+make[2]: Entering directory `/root/work/ap-utils-1.5/po'
+make[2]: *** No rule to make target `all'. Stop.
+make[2]: Leaving directory `/root/work/ap-utils-1.5/po'
+make[1]: *** [all-recursive] Error 1
+make[1]: Leaving directory `/root/work/ap-utils-1.5'
+make: *** [all-recursive-am] Error 2
+
+You may safely ignore this one.
-Q.
->Can someone give me the "newbe" answer to what's the
->relationship/difference between RSSI and Link Quality?
+Q:
+I bought an access point. Unfortunately, the documentation does not state
+what are the default community strings defined within the device.
+Do you know what it is, or where I could find it out?
+
+A:
+It should be in your AP's documentation, really.
+For example, the default communities for Linksys WAP11 are:
+"public", "private", "linksys".
+Most other devices have all three communities predefined to the same
+value, such as "public", "public", "public".
+If you just got an AP from someone who didnt provide you with the currently
+configured community strings, and your AP has no reset button,
+but has an USB port, you may try to reset AP to its default (manufacturer)
+configuration using "DFU" utility (in Windows), provided by the manufacturer
+of your device. *NIX variant of DFU utility is currently in progress
+and should be available in one of upcomming releases.
+
+Q:
+The wireless & ethernet stats counters are reset to zero each time I grab
+the KnownAP signal and quality stats. The same issue happens when
+performing KnownAP scan using the ap-config program without modification.
A.
+This happens because the only way to see updated KnownAPs info is to put
+your device to the AP-client mode with preferred BSSID 000000000000. Device
+needs to be rebooted so that this change goes into effect. As side effect
+of this reboot, all counters in the device are, of course, zeroed.
+After this, the utility also takes care to reconfigure device back
+to its previous setting (second reset). Unability to perform KnownAP
+scan while in different than AP-client mode is generally a feature
+of all firmware versions for devices with INTERSIL radio.
+All in all, it is a firmware feature, not a bug.
+The RSSI and LQ stats may be retrieved without AP reboot (and thus
+without reset of wireless & ethernet statistics counters) only if the device
+is permanently set to the AP-client mode.
+
+Q:
+Can someone give me the "newbie" answer to what's the relationship/difference
+between RSSI and Link Quality?
+
+A:
RSSI = Received Signal Strength Indication. Measures only the signal
amplitude. This plays a major role in calculating the fade margin of the
link.
-The Signal Quality represents how clean the signal is. Interference,
-Multi path Reflections etc. This measure plays a major role in
+The Link Quality value represents how clean the signal is - it reflects
+eventual degradation of radio signal transmision conditions, such as
+interference, multipath reflections, etc. This measure plays a major role in
determining the data throughput. Low Signal Quality would normally mean
-retransmissions, dropped packets etc.
+frequent retransmissions, dropped packets etc.
+Note, that firmware for ATMEL-based devices with RFMD radio does not provide
+Link Quality value (and this is a firmware feature, not a bug).
+
+Q:
+I have an ATMEL-based device with RFMD radio, use the firmware from E-ZY.NET
+and the graph of RSSI value history looks very jumpy. Is this normal, or is
+my link really so bad?
+
+A:
+It is normal, you dont need to be afraid. Also this is why 'RSSI average'
+and 'RSSI rounding' graphs are provided for - they allow you to see
+the averaged value of the RSSI over certain period of samples. Apparently,
+the actual RSSI value shown reflects also the signal phase conditions
+(influenced by signal reflections, and interference). So you may eventually
+think of it as 'RSSI + LQ aggregated'.
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