Re: 4G LTE Config on IR1101

iso00 · ‎08-16-2021

I am working with IR1101 running ir1101-universalk9.17.06.01.SPA.bin with P-LTEAP18-GL LTE module. I am trying to bring the Cell interface up and have been running into some issues.

Relevant configuration here

controller Cellular 0/1/0
lte sim data-profile 7 attach-profile 7 slot 0
no lte firmware auto-sim

interface Cellular0/1/0
ip address negotiated
load-interval 30
dialer in-band
dialer idle-timeout 30
dialer watch-group 1
pulse-time 1
ip virtual-reassembly
!
interface Cellular0/1/1
no ip address
shutdown

ip route 0.0.0.0 0.0.0.0 Cellular0/1/0

ip access-list standard 1
10 permit any
dialer watch-list 1 ip 5.6.7.8 255.255.255.255
dialer watch-list 1 delay route-check initial 60
dialer watch-list 1 delay connect 1
dialer-list 1 protocol ipv6 permit
dialer-list 1 protocol ip permit

router#sh cellular 0/1/0 radio
Radio power mode = Online
Channel Number = 0
Current Band = Unknown
Current RSSI(RSCP) = -59 dBm
Current ECIO = -65528 dBm
Primary Scrambling Code = 285
Radio Access Technology(RAT) Preference = AUTO
Radio Access Technology(RAT) Selected = UMTS
Network Change Event = unknown

router#sh cellular 0/1/0 profile 7
Profile password Encryption level = 7

Profile 7 = INACTIVE* **
--------
PDP Type = IPv4v6
Access Point Name (APN) = TEST
Authentication = None

* - Default profile
** - LTE attach profile

router#sh cellular 0/1/0 security
Active SIM = 0
SIM switchover attempts = 0
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
SIM User Operation Required = None
Number of CHV1 Retries remaining = 3

router#sh cellular 0/1/0 firmware
Idx Carrier FwVersion PriVersion Status
1 Generic 32.00.114 1023 Inactive
2 Verizon 32.00.124 2020 Active
3 ATT 32.00.143 4021 Inactive

*Aug 16 11:05:17.225: Ce0/1/0 DDR: Dialer Watch: resetting call in progress
*Aug 16 11:05:17.225: Ce0/1/0 DDR: Dialer Watch: Check reconnection needed
*Aug 16 11:05:17.225: DDR: Dialer Watch: watch-group = 1
*Aug 16 11:05:17.225: DDR: network 5.6.7.8/255.255.255.255 DOWN,
*Aug 16 11:05:17.225: DDR: primary DOWN
*Aug 16 11:05:17.225: DDR: Dialer Watch: Dial Reason: Secondary of group 1 AVAILABLE
*Aug 16 11:05:17.226: DDR: Dialer Watch: watch-group = 1,
*Aug 16 11:05:17.226: DDR: dialing secondary by dialer string lte on Ce0/1/0
*Aug 16 11:05:17.226: DDR: Dialer Watch: Stale dialer watch group 1 found on Ce0/1/0
*Aug 16 11:05:17.226: Ce0/1/0 DDR: Attempting to dial lte
*Aug 16 11:05:17.226: Ce0/1/0 DDR: Unable to dial lte.
*Aug 16 11:05:17.226: Ce0/1/0 DDR: Dialer Watch: resetting call in progress
*Aug 16 11:05:32.225: Ce0/1/0 DDR: re-enable timeout
*Aug 16 11:05:32.225: DDR: Dialer Watch: watch-group = 1
*Aug 16 11:05:32.225: DDR: network 5.6.7.8/255.255.255.255 DOWN,
*Aug 16 11:05:32.225: DDR: primary DOWN
*Aug 16 11:05:32.225: Ce0/1/0 DDR: Dialer Watch: resetting call in progress
*Aug 16 11:05:32.225: Ce0/1/0 DDR: Dialer Watch: Check reconnection needed
*Aug 16 11:05:32.225: DDR: Dialer Watch: watch-group = 1
*Aug 16 11:05:32.225: DDR: network 5.6.7.8/255.255.255.255 DOWN,
*Aug 16 11:05:32.225: DDR: primary DOWN
*Aug 16 11:05:32.225: DDR: Dialer Watch: Dial Reason: Secondary of group 1 AVAILABLE
*Aug 16 11:05:32.225: DDR: Dialer Watch: watch-group = 1,
*Aug 16 11:05:32.225: DDR: dialing secondary by dialer string lte on Ce0/1/0
*Aug 16 11:05:32.225: DDR: Dialer Watch: Stale dialer watch group 1 found on Ce0/1/0
*Aug 16 11:05:32.225: Ce0/1/0 DDR: Attempting to dial lte
*Aug 16 11:05:32.225: Ce0/1/0 DDR: Unable to dial lte.
*Aug 16 11:05:32.225: Ce0/1/0 DDR: Dialer Watch: resetting call in progress

Georg Pauwen · ‎08-16-2021

Hello,

try and add the lines marked in bold:

--> chat-script lte "" "AT!CALL" TIMEOUT 20 "OK"
!
controller Cellular 0/1/0
lte sim data-profile 7 attach-profile 7 slot 0
no lte firmware auto-sim
!
interface Cellular0/1/0
ip address negotiated
load-interval 30
dialer in-band
--> dialer string lte
dialer idle-timeout 30
dialer watch-group 1
pulse-time 1
ip virtual-reassembly
!
interface Cellular0/1/1
no ip address
shutdown
!
ip route 0.0.0.0 0.0.0.0 Cellular0/1/0
!
ip access-list standard 1
10 permit any
--> dialer watch-list 1 ip 5.6.7.8 0.0.0.0
dialer watch-list 1 delay route-check initial 60
dialer watch-list 1 delay connect 1
dialer-list 1 protocol ipv6 permit
dialer-list 1 protocol ip permit

iso00 · ‎08-16-2021

The chat-script lte took, but dialer string lte did not. I swapped out the 255.255.255.255 with 0.0.0.0 in dialer watch-list 1. Slightly different output from dialer.

router(config)#interface Cellular0/1/0
router(config-if)#dialer ?
callback-secure      Enable callback security
disable-multiencaps  Disable Multi-Encaps for ISDN
down-with-vInterface Bring down Dialer when Virtual interface is down
dtr                  Set DTR dialing for interface
enable-timeout       Set length of time an interface stays down before it is available for dialing
fast-idle            Set idle time before disconnecting line with an unusually high level of contention
hold-queue           Configure output hold queue
idle-timeout         Specify idle timeout before disconnecting line
in-band              Set v.25bis dialing for interface
leased               Leased/Non-Dial link
map                  Define multiple dial-on-demand numbers
mult-map-same-name   Multiple maps same remote name order Specify order of choosing dialstrings
pool-member          Specify dialer pool membership
pppoe-client-vlan-cos set dot1p cos value in pppoe control packets
priority             Specify priority for use in dialer group
redial               Configure redial for this interface
rotary-group         Add to a dialer rotary group
snapshot             Enable snapshot address for dialer profile
vpdn                 Enable vpdn dial
wait-for-carrier-time How long the router will wait for carrier
wait-for-line-protocol Time the router will wait for the line protocol to come up
watch-disable        Time to wait before bringing down watched route link
watch-group          Assign interface to dialer-watch-list

*Aug 16 16:11:22.149: Ce0/1/0 DDR: Dialer Watch: resetting call in progress
*Aug 16 16:11:22.149: Ce0/1/0 DDR: Dialer Watch: Check reconnection needed
*Aug 16 16:11:22.149: DDR: Dialer Watch: watch-group = 1
*Aug 16 16:11:22.149: DDR:        network 5.6.7.8/0.0.0.0 DOWN,
*Aug 16 16:11:22.149: DDR:        primary DOWN
*Aug 16 16:11:22.149: DDR: Dialer Watch: Dial Reason: Secondary of group 1 AVAILABLE
*Aug 16 16:11:22.149: DDR: Dialer Watch: watch-group = 1,
*Aug 16 16:11:22.149: DDR:        dialing secondary by dialer string lte on Ce0/1/0
*Aug 16 16:11:22.149: DDR: Dialer Watch: Stale dialer watch group 1 found on Ce0/1/0
*Aug 16 16:11:22.149: Ce0/1/0 DDR: Dialing ddb is : Ce0/1/0
*Aug 16 16:11:22.149: Ce0/1/0 DDR: Dialer string selection method [SEQUENTIAL],
  Call in progress was [NULL],
  Recent success call[NULL],
  first_entry[lte]
*Aug 16 16:11:22.149: Ce0/1/0 DDR: Number to call[lte]
*Aug 16 16:11:22.150: Ce0/1/0 DDR: Attempting to dial lte
*Aug 16 16:11:22.150: Ce0/1/0 DDR: Unable to dial lte.
*Aug 16 16:11:22.150: Ce0/1/0 DDR: dialer cannot dial
*Aug 16 16:11:22.150: Ce0/1/0 DDR: Dialer Watch: resetting call in progress
*Aug 16 16:11:37.149: Ce0/1/0 DDR: re-enable timeout
*Aug 16 16:11:37.149: DDR: Dialer Watch: watch-group = 1
*Aug 16 16:11:37.149: DDR:        network 5.6.7.8/0.0.0.0 DOWN,
*Aug 16 16:11:37.149: DDR:        primary DOWN
*Aug 16 16:11:37.149: Ce0/1/0 DDR: dialer cannot dial

Georg Pauwen · ‎08-16-2021

Hello,

I wonder if your SIM (cellular) gets a physical connection at all.

Try the below config (no dialer watch), with an offload to a dialer interface and a dialer persistent...

--> chat-script lte "" "AT!CALL" TIMEOUT 20 "OK"
!
controller Cellular 0/1/0
lte sim data-profile 7 attach-profile 7 slot 0
no lte firmware auto-sim
!
interface Cellular0/1/0
ip address negotiated
load-interval 30
dialer in-band
--> dialer pool-member 1
pulse-time 1
ip virtual-reassembly
--> async mode interactive
--> routing dynamic
!
interface Cellular0/1/1
no ip address
shutdown
!
--> interface Dialer1
--> ip address negotiated
--> encapsulation slip
--> dialer pool 1
--> dialer idle-timeout 0
--> dialer string lte
--> dialer persistent
--> dialer-group 1
!
--> ip route 0.0.0.0 0.0.0.0 Dialer 1
!
dialer-list 1 protocol ip permit

iso00 · ‎08-16-2021

A number of the configuration parameters are not available under Cellular interface

router(config)#interface Cellular0/1/0
router(config-if)#no dialer in-band
router(config-if)#dialer pool-member 1
%Configure a "dialer in-band", or "dialer pool" first.
router(config-if)#dialer in-band
router(config-if)#dialer pool-member 1
%Remove Legacy DDR Configuration first
router(config-if)#async ?
% Unrecognized command
router(config-if)#routing ?
% Unrecognized command
router(config-if)#routing

I also saw a note pertaining to chat scripts in the configuration guide

The following features are not supported on Cisco 4G LTE Advanced on the IR1101, when compared to
Classic IOS:
• TTY support or Line
• Chat script/dialer string
• DM log output to USB flash is not supported

Georg Pauwen · ‎08-16-2021

Hello,

you don't need the async routing or the script. Try and configure only the below, I would like to see if you get a connection on your cell at all:

!
controller Cellular 0/1/0
lte sim data-profile 7 attach-profile 7 slot 0
no lte firmware auto-sim
!
interface Cellular0/1/0
ip address negotiated
load-interval 30
dialer in-band
--> dialer pool-member 1
pulse-time 1
ip virtual-reassembly
!
interface Cellular0/1/1
no ip address
shutdown
!
--> interface Dialer1
--> ip address negotiated
--> encapsulation slip
--> dialer pool 1
--> dialer idle-timeout 0
--> dialer persistent
--> dialer-group 1
!
--> ip route 0.0.0.0 0.0.0.0 Dialer 1
!
dialer-list 1 protocol ip permit

iso00 · ‎08-16-2021

Interface shows up, Profile remains inactive.

Cellular0/1/0          unassigned      YES NVRAM  up                    up

Cellular0/1/0 is up (spoofing), line protocol is up (spoofing)
  Hardware is LTE Advanced Pro CAT-18 pluggable-Global Multimode LTE/LTE-A/LTE-AP/DC-HSPA+/HS
  Internet address will be negotiated using IPCP
  MTU 1500 bytes, BW 50000 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation HDLC, loopback not set
  Keepalive not supported
  DTR is pulsed for 1 seconds on reset
  Last input never, output 00:00:20, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     Output 0 broadcasts (0 IP multicasts)
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

Georg Pauwen · ‎08-16-2021

Hello,

what if you delete the profile ?

I am not 100% sure what the command is to create/delete a profile, it could be:

cellular 0/1/0 lte profile create 1 APN-name none ipv4v6 <-- to create or modify profiles.

cellular 0/1/0 lte profile delete 1 APN-name none ipv4v6

or

cellular 0 lte profile delete 1 <-- to delete a profile.

no lte sim data-profile 7 attach-profile 7 slot 0

and create a new one ?

iso00 · ‎08-16-2021

I tried recreating the profile, but did not see any change

cellular 0/1/0 lte profile create 8 <apn> none ipv4v6
controller Cellular 0/1/0
no lte sim data-profile 7 attach-profile 7 slot 0
lte sim data-profile 8 attach-profile 8 slot 0

iso00 · ‎08-19-2021

Turns out I had the wrong APN name. my original configuration works. Only other change i did was switch from 3G to 4G. Thanks for taking a look!

conf t
int cell 0/1/0
shut
exit
cell 0/1/0 lte tech lte
conf t
int cell 0/1/0
no shut

Georg Pauwen · ‎08-19-2021

Hello,

good to know you got it resolved...