Hi,
I have configured my carambola board for 3G USB dongle wan interface. with Routed AP network set up(Referred OpenWrt home site).

Here i used TATA DOCOMO PHOTON 3G USB dongle.

I am able to access internet using 3G USB dongle.
But problem i am facing is 3G USB dongle wan interface not displaying on WAN LuCI Page.

I have gone through the link : http://luci.subsignal.org/trac/ticket/335

But i have already installed package luci-proto-3g and i have file /usr/lib/lua/luci/model/cbi/admin_network/proto_3g.lua on my carambola build directory.


Below are the responsible configuration details for 3G USB dongle wan interface with Routed AP network set up.

/etc/config/network
/*******

config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'

config interface 'lan'
option ifname 'eth0.1'
option type 'bridge'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option macaddr 'c4:93:00:11:1b:65'

config interface 'wan'
option ifname 'ppp0'
option device '/dev/ttyUSB3'
option apn 'tatadocomo3g'
option service 'edge'
option proto '3g'

config interface 'wifi'
option proto 'static'
option ipaddr '192.168.2.1'
option netmask '255.255.255.0'

config switch
option name 'rt305x'
option reset '1'
option enable_vlan '1'

config switch_vlan
option device 'rt305x'
option vlan '1'
option ports '1 2 3 4 6t'

config switch_vlan
option device 'rt305x'
option vlan '2'
option ports '0 6t'

*******/

/etc/config/wireless
/******

config wifi-device radio0
option type mac80211
option channel 11
option macaddr c4:93:00:11:1b:60
option hwmode 11ng
option htmode HT20
list ht_capab GF
list ht_capab SHORT-GI-20
list ht_capab SHORT-GI-40
list ht_capab RX-STBC1
# REMOVE THIS LINE TO ENABLE WIFI:
#option disabled 1

config wifi-iface
option device radio0
option network wifi
option mode ap
option ssid OpenWrt
option encryption 'psk2'
option key 'prashant'

******/

/etc/config/dhcp
/****

config dnsmasq
option domainneeded 1
option boguspriv 1
option filterwin2k 0 # enable for dial on demand
option localise_queries 1
option rebind_protection 1 # disable if upstream must serve RFC1918 addresses
option rebind_localhost 1 # enable for RBL checking and similar services
#list rebind_domain example.lan # whitelist RFC1918 responses for domains
option local '/lan/'
option domain 'lan'
option expandhosts 1
option nonegcache 0
option authoritative 1
option readethers 1
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.auto'
#list server '/mycompany.local/1.2.3.4'
#option nonwildcard 1
#list interface br-lan
#list notinterface lo
#list bogusnxdomain '64.94.110.11'

config dhcp lan
option interface lan
option start 100
option limit 150
option leasetime 12h

config dhcp wan
option interface wan
option ignore 1

config dhcp 'wifi'
option interface 'wifi'
option start '100'
option limit '150'
option leasetime '12h'

****/

/etc/config/firewall
/********

config defaults
option syn_flood 1
option input ACCEPT
option output ACCEPT
option forward REJECT
# Uncomment this line to disable ipv6 rules
# option disable_ipv6 1

config zone
option name lan
option network 'lan'
option input ACCEPT
option output ACCEPT
option forward REJECT

config zone
option name wan
option network 'wan'
option input REJECT
option output ACCEPT
option forward REJECT
option masq 1
option mtu_fix 1


config zone
option name wifi
option input ACCEPT
option output ACCEPT
option forward REJECT

config forwarding
option src lan
option dest wan


config forwarding
option src wifi
option dest wan


config forwarding
option src lan
option dest wifi


config forwarding
option src wifi
option dest lan

# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
option target ACCEPT
option family ipv4

# Allow IPv4 ping
config rule
option name Allow-Ping
option src wan
option proto icmp
option icmp_type echo-request
option family ipv4
option target ACCEPT

# Allow DHCPv6 replies
# see https://dev.openwrt.org/ticket/10381
config rule
option name Allow-DHCPv6
option src wan
option proto udp
option src_ip fe80::/10
option src_port 547
option dest_ip fe80::/10
option dest_port 546
option family ipv6
option target ACCEPT

# Allow essential incoming IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Input
option src wan
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
list icmp_type router-solicitation
list icmp_type neighbour-solicitation
list icmp_type router-advertisement
list icmp_type neighbour-advertisement
option limit 1000/sec
option family ipv6
option target ACCEPT

# Allow essential forwarded IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
option limit 1000/sec
option family ipv6
option target ACCEPT

# include a file with users custom iptables rules
config include
option path /etc/firewall.user


### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
# option src lan
# option src_ip 192.168.45.2
# option dest wan
# option proto tcp
# option target REJECT

# block a specific mac on wan
#config rule
# option dest wan
# option src_mac 00:11:22:33:44:66
# option target REJECT

# block incoming ICMP traffic on a zone
#config rule
# option src lan
# option proto ICMP
# option target DROP

# port redirect port coming in on wan to lan
#config redirect
# option src wan
# option src_dport 80
# option dest lan
# option dest_ip 192.168.16.235
# option dest_port 80
# option proto tcp

# port redirect of remapped ssh port (22001) on wan
#config redirect
# option src wan
# option src_dport 22001
# option dest lan
# option dest_port 22
# option proto tcp

# allow IPsec/ESP and ISAKMP passthrough
#config rule
# option src wan
# option dest lan
# option protocol esp
# option target ACCEPT

#config rule
# option src wan
# option dest lan
# option src_port 500
# option dest_port 500
# option proto udp
# option target ACCEPT

### FULL CONFIG SECTIONS
#config rule
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 80
# option dest wan
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
# option target REJECT

#config redirect
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 1024
# option src_dport 80
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp

******/

So please guide me on this issue.

Thanks,
Prashant N