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hspottest is a test for GRE tunneling when running a WLAN-Hotspot.
It requires manual modification to the ar7.cfg and is just a proof of concept tool.

The sample config shows an IP of a GRE server in AVM's network, who likely don't run a public GRE proxy. :)

GRE (Generic Routing Encapsulation) is a non crypting tunneling protocol which can encapsulate other protocols[1].

fw 7.29 help:

root@fritz:/var/mod/root# hspottest -?

usage: hspottest [options]

  -?                 - print this help
  -f                 - run in forground. (NOTSET)
  -s                 - stop daemon. (NOTSET)
  -p STRING          - pidfile. ("/var/tmp/hspottest.pid")
  -l INTEGER         - txqlen. (100)
  -i STRING          - ipaddr of interface. (FUNC)
  -m STRING          - mask of interface. (FUNC)
  -D STRING          - switch debug logs on. (FUNC)

start server:   hspottest
stop server :   hspottest -s

Put into ar7.cfg:
  hotspotcfg {
     hsdevices {
        enabled = yes;
        ifname = "hspottest";
        circuit_id = "00:00:00:00:00:00 hspottest";
        gre_server =


Daily updated index of Configuration files accessed by this command. Last update: 2023-01-28 06:37 GMT.
A - in the Mod column marks manual research, the Firmware then shows where the item occurs, not the Relation.

Relation Typ Object Mod Firmware Info Origin
Config from tffs ar7.cfg (tffs) - 4.07 - 7.51 TODO AVM
1 config relation for this command


The names of source files compiled into an executable often help to understand function blocks (and show gaps in the docs).
fw 7.39 source files:

$ strings /bin/hspottest | grep -e '\.c$' -e '\.cpp$'



Daily updated index of all dependencies of this command. Last update: 2023-01-28 07:15 GMT.
A * in the Mod column marks info from Supportdata-Probes, which will always stay incomplete.

Relation Typ Object Mod Firmware Info Origin
Depends on lib ld.so 8 7.39 - 7.51 Dynamic linker / loader Linux
Depends on lib libavmcsock.so 26 6.35 - 7.51 Networking, I/O and helper functions AVM
Depends on lib libc.so 26 6.35 - 7.51 Standard C library Linux
Depends on lib libdl.so 8 6.35 - 7.39 Dynamic linking library Linux
Depends on lib libewnwlinux.so 26 6.35 - 7.51 Linux networking functions AVM
Depends on lib libpthread.so 8 6.35 - 7.39 POSIX threading library Linux
Depends on lib librt.so 8 6.35 - 7.39 POSIX realtime extensions library Linux
Depends on lib libsvctl.so 26 7.39 - 7.51 supervisor control library AVM
Depends on lib libwdt.so 26 7.39 - 7.51 AVM-Watchdogs management API AVM
Depends on lib libz.so 26 7.39 - 7.51 Zlib compressor / decompressor Linux
10 dependencies for this command


Daily updated index of the presence, path and size of this command for each model. Last update: 2023-01-28 05:56 GMT.
Showing all models using this command. Click any column header (click-wait-click) to sort the list by the respective data.
The (main/scrpn/boot/arm/prx/atom) label in the Model column shows which CPU is meant for models with multiple Linux instances.
Note that this list is merged from Firmware-Probes of all known AVM firmware for a model, including Recovery.exe and Labor-Files.

Model Firmware Path Size
FRITZ!Box 4040 7.39 /bin 9.5k
FRITZ!Box 4060 7.39 /bin 9.4k
FRITZ!Box 5590 Fiber (arm) 7.39 /bin 9.4k
FRITZ!Box 6490 Cable (arm) 7.39 /bin 9.3k
FRITZ!Box 6490 Cable (atom) 7.39 /bin 9.3k
FRITZ!Box 6590 Cable (arm) 7.39 /bin 9.3k
FRITZ!Box 6590 Cable (atom) 7.39 /bin 9.3k
FRITZ!Box 6591 Cable (arm) 7.39 /bin 13.6k
FRITZ!Box 6591 Cable (atom) 7.39 /bin 13.6k
FRITZ!Box 6660 Cable (arm) 7.39 /bin 13.6k
FRITZ!Box 6660 Cable (atom) 7.39 /bin 13.6k
FRITZ!Box 6690 Cable (arm) 7.39 /bin 13.6k
FRITZ!Box 6690 Cable (atom) 7.39 /bin 13.6k
FRITZ!Box 6850 LTE 7.39 /bin 9.5k - 9.9k
FRITZ!Box 6850 5G 7.39 /bin 9.5k
FRITZ!Box 6890 LTE 7.39 /bin 9.9k
FRITZ!Box 6890 LTE v1 7.39 /bin 9.9k
FRITZ!Box 6890 LTE v2 7.39 /bin 9.9k
FRITZ!Box 7490 (main) 6.35 - 7.51 /bin 6.7k - 10.0k
FRITZ!Box 7510 7.39 /bin 9.4k
FRITZ!Box 7520 7.39 /bin 9.5k
FRITZ!Box 7520 v2 (arm) 7.39 /bin 9.5k
FRITZ!Box 7530 7.39 - 7.51 /bin 9.5k
FRITZ!Box 7530 AX 7.39 /bin 9.6k
FRITZ!Box 7590 7.39 - 7.51 /bin 9.9k
FRITZ!Box 7590 AX 7.39 /bin 9.9k
26 models use this command


Daily updated index of all symbols of this command. Last update: 2023-01-28 07:15 GMT.

Firmware Symbol
6.35 - 7.51 main
1 symbol for this command



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