Dobra, jeden problem z openwrt odszedł i od razu pojawił się nowy. Oto logi:
root@OpenWrt:~$ /etc/init.d/wifidog restart
Stopping Wifidog ...
FAILED: Wifidog was not running
Starting Wifidog ...
Testing for iptables modules
Testing ipt_mac
ipt_mac module is working
Testing ipt_mark
ipt_mark module is working
Testing ipt_REDIRECT
ipt_REDIRECT module is working
OK
root@OpenWrt:~$ [3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t mangle -F WiFiDog_br-public_Trusted
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t mangle -F WiFiDog_br-public_Outgoing
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t mangle -F WiFiDog_br-public_Incoming
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t mangle -X WiFiDog_br-public_Trusted
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t mangle -X WiFiDog_br-public_Outgoing
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t mangle -X WiFiDog_br-public_Incoming
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -F WiFiDog_br-public_AuthServers
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -F WiFiDog_br-public_Outgoing
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -F WiFiDog_br-public_WIFI2Router
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -F WiFiDog_br-public_WIFI2Internet
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -F WiFiDog_br-public_Global
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -F WiFiDog_br-public_Unknown
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -X WiFiDog_br-public_AuthServers
[3][Wed Nov 16 19:19:58 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -X WiFiDog_br-public_Outgoing
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -X WiFiDog_br-public_WIFI2Router
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -X WiFiDog_br-public_WIFI2Internet
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -X WiFiDog_br-public_Global
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -X WiFiDog_br-public_Unknown
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -F WiFiDog_br-public_WIFI2Internet
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -F WiFiDog_br-public_AuthServers
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -F WiFiDog_br-public_Locked
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -F WiFiDog_br-public_Global
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -F WiFiDog_br-public_Validate
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -F WiFiDog_br-public_Known
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -F WiFiDog_br-public_Unknown
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -X WiFiDog_br-public_WIFI2Internet
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -X WiFiDog_br-public_AuthServers
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -X WiFiDog_br-public_Locked
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -X WiFiDog_br-public_Global
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -X WiFiDog_br-public_Validate
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -X WiFiDog_br-public_Known
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t filter -X WiFiDog_br-public_Unknown
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -N WiFiDog_br-public_WIFI2Internet
iptables v1.4.6: Couldn't load target `WiFiDog_br-public_WIFI2Internet':File not found
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -A WiFiDog_br-public_Outgoing -j WiFiDog_br-public_WIFI2Internet
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -A WiFiDog_br-public_WIFI2Internet -m mark --mark 0x2 -j ACCEPT
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -A WiFiDog_br-public_WIFI2Internet -m mark --mark 0x1 -j ACCEPT
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t nat -A WiFiDog_br-public_WIFI2Internet -j WiFiDog_br-public_Unknown
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -N WiFiDog_br-public_WIFI2Internet
iptables v1.4.6: Couldn't load target `WiFiDog_br-public_WIFI2Internet':File not found
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -I FORWARD -i br-public -j WiFiDog_br-public_WIFI2Internet
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -m state --state INVALID -j DROP
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -o eth0.2 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -j WiFiDog_br-public_AuthServers
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -m mark --mark 0x254 -j WiFiDog_br-public_Locked
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -j WiFiDog_br-public_Global
iptables: Invalid argument. Run `dmesg' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -A WiFiDog_br-public_Global -d 0.0.0.0/0 -p tcp --dport 25 -j REJECT
iptables: Invalid argument. Run `dmesg' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -A WiFiDog_br-public_Global -d 192.168.0.0/16 -j REJECT
iptables: Invalid argument. Run `dmesg' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -A WiFiDog_br-public_Global -d 172.16.0.0/12 -j REJECT
iptables: Invalid argument. Run `dmesg' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(1): iptables -t nat -A WiFiDog_br-public_Global -d 10.0.0.0/8 -j REJECT
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:19:59 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -m mark --mark 0x1 -j WiFiDog_br-public_Validate
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:20:00 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -m mark --mark 0x2 -j WiFiDog_br-public_Known
iptables v1.4.6: chain name `WiFiDog_br-public_WIFI2Internet' too long (must be under 30 chars)
Try `iptables -h' or 'iptables --help' for more information.
[3][Wed Nov 16 19:20:00 2011][9248](fw_iptables.c:116) iptables command failed(2): iptables -t filter -A WiFiDog_br-public_WIFI2Internet -j WiFiDog_br-public_Unknown
root@OpenWrt:~$
Zainstalowałem WiFiDOg, wydaje się najbardziej funkcjonalny (ma w sobie hotspot oraz tzw Captive portal, czyli w pełni funkcjonalny hotspot). Niestety, coś nie działa. Internet `mówi`, że problem został dawno rozwiązany (3 lata temu):
http://dev.wifidog.org/ticket/515
Nie mniej, dalej mam takie właśnie komunikaty 
W zasadzie komunikat do Cezarego - czy czasem paczek do tego nie masz jakiś starych/nie kompatybilnych? Mam OpenWrt ściągniętego od Ciebie z wydania z 2011-10-13. Być może od tego czasu coś się zmieniło, nie wiem. Proszę o pomoc.
PS. Dodam, że podczas instalacji opkg install wifidog dostałem na początku masę błędów/komunikatów o (chyba) zdublowanych pakietach oraz coś drukowymi literami (nie pamiętam co dokładnie), ale instalacja poszła.