X-Git-Url: https://git.decadent.org.uk/gitweb/?p=ap-utils.git;a=blobdiff_plain;f=Documentation%2FFAQ;fp=Documentation%2FFAQ;h=6178ec6586562034ba56d3f2adaf37ffc586e1e7;hp=aad30e04f4263eb062b374061650d16cfcca414f;hb=1aac4ac30a9a0d6cd2182013d2b3fd48b65ed2fd;hpb=5c77e013a46530bb3650f61d768dfed0dd3b72cb diff --git a/Documentation/FAQ b/Documentation/FAQ index aad30e0..6178ec6 100644 --- a/Documentation/FAQ +++ b/Documentation/FAQ @@ -1,43 +1,110 @@ -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'.