If you can get telnet access to a shell, to the MIPS part, there are commands such as wan and adslphxcmd and its always worth looking under /proc/ for anything interesting.
ok heres a list what do i need to do.
ASUSWRT DSL-AC68U_3.0.0.4 Mon Aug 25 03:53:12 UTC 2014
admin@DSL-AC68U:/tmp/home/root#
3ginfo.sh du lsmod setconsole
ATE e2fsck lsusb setup_dnsmq
[ eapd madwimax setuprsa.sh
[[ ebtables md5sum sh
acsd echo mdev sigmon
ad egrep memalloc sleep
add_account ejusb minidlna smbd
add_folder email miniupnpd smbpasswd
add_multi_routes emf mkdir sort
adslate env mke2fs spectrum
afpd epi_ttcp mkfs.ext2 strings
afppasswd et mkfs.ext3 swapoff
app_base_library.sh ether-wake mkhfs swapon
app_base_link.sh expr mknod switchmode
app_base_packages.sh ez-ipupdate mkntfs sync
app_cancel.sh fdisk mkswap sysinfo
app_check_folder.sh fgrep mod_account syslogd
app_check_pool.sh find mod_folder tail
app_fsck.sh find_modem_node.sh modem_enable.sh tar
app_fsck_all.sh find_modem_type.sh modem_signal.sh taskset
app_get_field.sh firmware_check modify_if_exist_new_folder tc
app_init_run.sh flock modprobe tcpcheck
app_install.sh free more telnet
app_move_to_pool.sh free_caches mount telnetd
app_remove.sh fsck.ext2 mt-daapd test
app_set_enabled.sh fsck.ext3 mtd-erase2 test_disk1
app_stop.sh fsck.minix mtd-unlock test_disk2
app_switch.sh fsync mtd-write2 test_endian
app_update.sh ftpget mv test_if_exist_account
app_upgrade.sh ftpput nas test_if_exist_share
arp gctwimax netstat test_of_var_files
arpstorm gencert.sh netstat-nat test_share
ash get_account_list networkmap test_system
asus_lp get_all_folder nice tftp
asus_sd get_apps_name nmbd top
asus_sg get_folder_list nohup touch
asus_sr get_permission nslookup tp_init
asus_tty get_phy_speed ntp tr
asus_usb_interface get_phy_status ntpclient traceroute
asus_usbbcm get_var_file_name nvram traceroute6
asuswebstorage gpio nvram_erase true
auto_det grep openssl tune2fs
auto_macclone gunzip openvpn u2ec
autodet gzip ots udevtrigger
avahi-daemon halt pc udhcpc
awk head pidof udpxy
basename hotplug ping umount
bcrelay hotplug2 ping6 uname
blkid how_many_layer pppd uniconv
brctl httpd pppoe-relay unzip
busybox hub-ctrl pptpctrl updown.sh
cat icon.ico pptpd uptime
chat icon.large.ico preinit uqmi
check_spectrum.sh ifconfig printf usb_modeswitch
chk_app_state igmpproxy ps usb_notify
chkhfs igs psta_monitor usbled
chkntfs infosvr public.pem usbtest.sh
chmod initial_all_var_file push_log usleep
chown initial_folder_list pwd vconfig
chpasswd initial_var_file radio vi
chpasswd.sh inotify radvd vsftpd
clear insmod rc wanduck
cmp ionice rcheck watch
cnid_dbd ip rdnssd watchdog
cnid_metad ip6tables read_sms wc
comgt ip6tables-restore readlink webs_update.sh
console iptables reboot webs_upgrade.sh
cp iptables-restore renice wget
create_if_no_var_files iptables-save req_dsl_drv which
crond kill restart_wireless wimaxc
cru killall rm wimaxd
cut klogd rmdir wl
date l2tp-control rmmod wlcconnect
dbd l2tpd route wlconf
dd led_ctrl rsasign_check wlcscan
ddns_updated less rstats wpa_cli
del_account lighttpd run_app_script wpa_supplicant
del_folder lighttpd-arpping run_pptpd wps_monitor
df lighttpd-monitor run_telnetd wpsaide
dhcp6c lld2d scsi-start write_3g_ppp_conf
dhcp6s lld2d.conf scsi-stop write_smb_conf
dirname ln sdparm write_webdav_conf
disk_monitor logger sed xtables-multi
disk_remove login send_sms zcat
dmesg lpd service zcip
dnsmasq ls set_permission