Cellular interfaces work very

Peter Boerjesson · ‎11-10-2014

I'm trying to get a 1921 router with the "EHWIC-4G-LTE-G" connection to work and I can't seem to get it right, here's some info.

!
controller Cellular 0/1
lte sim authenticate 7 xxxxxxxx
!
interface GigabitEthernet0/1
description *** inside
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
interface Cellular0/1/0
ip address negotiated previous
ip nbar protocol-discovery
ip flow ingress
ip flow egress
ip nat outside
ip virtual-reassembly in
encapsulation slip
dialer in-band
dialer string lte
dialer-group 1
async mode interactive
routing dynamic
!
ip nat inside source list nat-hitlist interface Cellular0/1/0 overload
ip route 0.0.0.0 0.0.0.0 Cellular0/1/0
ip access-list extended nat-hitlist
remark Inside network
permit ip 192.168.1.0 0.0.0.255 any
!
line 0/1/0
script dialer lte
modem InOut
modem autoconfigure discovery
no exec
transport input all
transport output all
rxspeed 100000000
txspeed 50000000
!

SEMOBRTR03#sh cellular 0/1/0 all
Hardware Information
====================
Modem Firmware Version = SWI9200X_03.05.19.04
Modem Firmware built = 2012/09/17 17:57:14
Hardware Version = 10
International Mobile Subscriber Identity (IMSI) = xxxxxxxxxxxxxxxxx
International Mobile Equipment Identity (IMEI) = xxxxxxxxxxxxxxxxxx
Integrated Circuit Card ID (ICCID) = xxxxxxxxxxxxxxxxxx
Mobile Subscriber International Subscriber
IDentity Number (MSISDN) = xxxxxxxxxxxxxxxx

Profile Information
====================
Profile password Encryption level: 7

Profile 1 = ACTIVE*
--------
PDP Type = IPv4
PDP address = 176.68.31.13
Access Point Name (APN) =
Authentication = None
Username:
Password: 00
Primary DNS address = 130.244.127.161
Secondary DNS address = 130.244.127.169

* - Default profile

Data Connection Information
===========================
Data Transmitted = 0 bytes, Received = 0 bytes
Profile 1, Packet Session Status = ACTIVE
IP address = 176.68.31.13
Primary DNS address = 130.244.127.161
Secondary DNS address = 130.244.127.169
Profile 2, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 3, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 4, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 5, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 6, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 7, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 8, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 9, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 10, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 11, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 12, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 13, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 14, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 15, Packet Session Status = INACTIVE
Inactivity Reason = Unknown
Profile 16, Packet Session Status = INACTIVE
Inactivity Reason = Unknown

Network Information
===================
Current Service Status = Normal
Current Service = Packet switched
Current Roaming Status = Home
Network Selection Mode = Automatic
Mobile Country Code (MCC) = 240
Mobile Network Code (MNC) = 7
Packet switch domain(PS) state = Attached
Registration(EMM) state = Registered

Radio Information
=================
Radio power mode = ON
Current RSSI = -65 dBm
LTE Technology Preference = AUTO
LTE Technology Selected = LTE

Modem Security Information
==========================
Card Holder Verification (CHV1) = Enabled
SIM Status = OK
SIM User Operation Required = None
Number of CHV1 Retries remaining = 3

Error Information
=================

This command is not supported on 4G modems.

Modem Crashdump Information
===========================
Modem crashdump logging: off

I think this is most of the relevant configuration of what I've done. I haven't played with cellular interfaces that much in the past (never anything starting from scratch at least). Anyone know why I'm not getting an IP on my cellular interface, any good reference documentation. I've been doing some googling and seen some other stuff tried with dailer interfaces as well but didn't work for me either?

Thanks in advance for any help.

Br

//Peter

ghostinthenet · ‎11-10-2014

Cellular interfaces work very much like dial-up interfaces, right down to a command set that is remarkably similar to those found on v.92 modems. You're going to need a dialer script, which you have already referenced in your configuration as "script dialer lte" but haven't defined.

Peter Boerjesson · ‎11-12-2014

I've added the dailer script lte

chat-script lte "" "AT!CALL" TIMEOUT 60 "OK"

I've actually bumped my code up to 15.3(3)M4 which creates the script automatically but I'm still not able to get it up and running.

SEMOBRTR03#ping 8.8.8.8
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:

*Nov 13 07:02:39: Ce0/1/0 DDR: re-enable timeout
*Nov 13 07:02:40: Ce0/1/0 DDR: place call
*Nov 13 07:02:40: Ce0/1/0 DDR: Dialing cause ip (s=192.168.1.1, d=8.8.8.8)
*Nov 13 07:02:40: Ce0/1/0 DDR: Attempting to dial lte
*Nov 13 07:02:40: CHAT0/1/0: Attempting async line dialer script
*Nov 13 07:02:40: CHAT0/1/0: Dialing using Modem script: lte & System script: none
*Nov 13 07:02:40: CHAT0/1/0: process started
*Nov 13 07:02:40: CHAT0/1/0: Asserting DTR
*Nov 13 07:02:40: CHAT0/1/0: Chat script lte started.....
Success rate is 0 percent (0/5)

I've noticed the "System script: none" could that be a problem? I've done a specific profile according to the provider, there's one problem though, it says not to specify a username or password however I can't figure out how to create the profile without that, simply will not allow me to do so. Although I do note that it is inactive and as written on my first page the default profile has some information.

4G-LTE-G ehwic on 1921