Q: acc and password of soekris 4826 ap?
A:
root
48264826 (or no password)

Q: how to login in?
A: 
ssh port 22 or com port baud rate 9600
ip of gateway should be 172.16.16.x or 192.168.0.x (local ip)
ssh root@172.16.16.254

Q: any config will be saved after reboot?
A: NO. unless save_cfg

1. unless save_cfg, all data will no be saved
2. mount
3. cat 
4. >
5. echo 
6. sed
7. vi command
8. /etc/rc.conf /etc/rc.local

Q: files need to pay attentation?
A:
root@4GCF-sisDHCP-wlanOK:~ # ls /etc/rc.local /etc/rc.conf
/etc/rc.conf	/etc/rc.local

Q: how to modify ssid?
A: 2 files /etc/hostapd.conf && /etc/rc.conf

root@4GCF-sisDHCP-wlanOK:~ # cat /etc/hostapd.conf | grep ssid
ssid=SoeKris4G

root@4GCF-sisDHCP-wlanOK:~ # cat /etc/rc.conf|grep ssid
ifconfig_wlan0="inet 172.16.16.254 netmask 255.255.255.0 ssid SoeKris mode 11g channel 11 -bgscan up"

Q: modify ssid password
A:
root@4GCF-sisDHCP-wlanOK:~ # cat /etc/hostapd.conf | grep pass
wpa_passphrase=48264826

Q: dhcp or fix ip?
A:
the interface is sis0 and check these 2 files
/etc/rc.conf 
/etc/rc.local