08-22-2022 12:44 AM
I have an odd issue where my cellular interface seems to have lost its connection.
Background here is the site was originally working over 4G, but we have now connected a new wired WAN to the router (ISR1111).
I notice now that the cellular interface has lost its layer 3 address despite showing as up/up:
Cellular0/2/0 unassigned YES IPCP up up
Prior to connecting the new primary WAN connection, this had an IP Address.
Looking at the details of the cell, I can see that it looks like the 4G has dropped its details:
Modem Firmware Version = SWI9X30C_02.33.03.00
Device Model ID = EM7430
International Mobile Subscriber Identity (IMSI) =
International Mobile Equipment Identity (IMEI) = 355813071281213
Integrated Circuit Card ID (ICCID) =
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) =
Factory Serial Number (FSN) = LR110471560110
Modem Status = Modem Online
Current Modem Temperature = 38 deg C
PRI SKU ID = 1102682, PRI version = 002.067_000, Carrier = TELSTRA
OEM PRI version = 000.012
Profile Information
====================
Profile 1 = INACTIVE* **
--------
PDP Type = IPv4
Access Point Name (APN) = telstra.corp
Authentication = CHAP
Username = cell-xxxxxxxxxxx
Password = xxxxxxxx
I have configured a number of these across a few sites, but I have not seen a similar issue to this.
I presume a sort of SLA might help me out, nut I'm not how that might look.
Any tips would be appreciated
08-22-2022 01:07 AM
Hello,
post the full running configuration (sh run)...
08-22-2022 01:10 AM
Its inactive, how is your configuration, are you using WAN Wired as the default route? what happens when you remove the Link WAN Wired network?
I have configured a number of these across a few sites, but I have not seen a similar issue to this.
Same setup ? with Wired WAN, what is the difference between working vs not working? what Model Router and IOS Code running here ?
08-22-2022 05:15 AM
Thanks Balaji
Every other site is the same yes. The devices are all ISR 1111 also and the difference between software revisions is 16.12.4, 16.12.5 and 16.12.6, so there doesnet seem to be much to go on regarding those verions .
Strangely, when i shut down the primary WAN port in order to fail back to the Cell, it now loses connectivity. This was despite the cell originally working as the sole connection prior to the wired WAN being made available.
08-22-2022 12:53 PM
Can you post the show run config for us to understand?
08-22-2022 02:09 AM
Hello
Can you post the output of the following please:
sh ip int brief
sh cell 0/2/0 connection
debug cell 0/2/0 messages profile
08-22-2022 05:03 AM
Thanks Paul.
I dont see an option for the messages profile under the list of debug commands, but here are the others:
GigabitEthernet0/0/0 192.168.X.X YES NVRAM up up
GigabitEthernet0/0/1 unassigned YES NVRAM up up
Gi0/0/1.210 10.X.X.1 YES NVRAM up up
Gi0/0/1.220 10.X.X.1 YES NVRAM up up
Gi0/0/1.230 10.X.X.1 YES NVRAM up up
Gi0/0/1.290 10.X.X.1 YES NVRAM up up
Gi0/0/1.310 10.X.X.1 YES NVRAM up up
Gi0/0/1.320 10.X.X.1 YES NVRAM up up
Gi0/0/1.330 10.X.X.1 YES NVRAM up up
Gi0/0/1.420 10.X.X.1 YES NVRAM up up
GigabitEthernet0/1/0 unassigned YES unset administratively down down
GigabitEthernet0/1/1 unassigned YES unset administratively down down
GigabitEthernet0/1/2 unassigned YES unset administratively down down
GigabitEthernet0/1/3 unassigned YES unset administratively down down
GigabitEthernet0/1/4 unassigned YES unset administratively down down
GigabitEthernet0/1/5 unassigned YES unset administratively down down
GigabitEthernet0/1/6 unassigned YES unset administratively down down
GigabitEthernet0/1/7 unassigned YES unset administratively down down
Cellular0/2/0 unassigned YES IPCP up up
Cellular0/2/1 unassigned YES NVRAM down down
Loopback100 10.114.191.100 YES NVRAM up up
Vlan1 unassigned YES unset administratively down down
Vlan290 unassigned YES unset up down
Profile 1, Packet Session Status = INACTIVE
Profile 2, Packet Session Status = INACTIVE
Profile 3, Packet Session Status = INACTIVE
Profile 4, Packet Session Status = INACTIVE
Profile 5, Packet Session Status = INACTIVE
Profile 6, Packet Session Status = INACTIVE
Profile 7, Packet Session Status = INACTIVE
Profile 8, Packet Session Status = INACTIVE
Profile 9, Packet Session Status = INACTIVE
Profile 10, Packet Session Status = INACTIVE
Profile 11, Packet Session Status = INACTIVE
Profile 12, Packet Session Status = INACTIVE
Profile 13, Packet Session Status = INACTIVE
Profile 14, Packet Session Status = INACTIVE
Profile 15, Packet Session Status = INACTIVE
Profile 16, Packet Session Status = INACTIVE
08-22-2022 05:28 AM - edited 08-22-2022 05:29 AM
if you use ip address DHCP or nego.
then check with ISP this issue that ISP not provide IP to you Cellular interface.
this not your issue I think it ISP issue.
08-22-2022 09:06 AM
Hello
Wasnt the output i was expecting?
does the following command work?
sh cell 0/2/0 all
08-22-2022 07:31 PM
Thanks Paul,
This is the full cell output.
Interesting part around the hardware info here:
#sh cell 0/2/0 all
Hardware Information
====================
Modem Firmware Version = SWI9X30C_02.33.03.00
Device Model ID = EM7430
International Mobile Subscriber Identity (IMSI) =
International Mobile Equipment Identity (IMEI) = 355813071281213
Integrated Circuit Card ID (ICCID) =
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) =
Factory Serial Number (FSN) = LR110471560110
Modem Status = Modem Online
Current Modem Temperature = 38 deg C
PRI SKU ID = 1102682, PRI version = 002.067_000, Carrier = TELSTRA
OEM PRI version = 000.012
Profile Information
====================
Profile 1 = INACTIVE* **
--------
PDP Type = IPv4
Access Point Name (APN) = telstra.corp
Authentication = CHAP
Username = cexxxxxxxxxxxx@xxxxxxxxxxxxxxx
Password = xxxxxxxx
* - Default profile
** - LTE attach profile
Data Connection Information
===========================
Profile 1, Packet Session Status = INACTIVE
Profile 2, Packet Session Status = INACTIVE
Profile 3, Packet Session Status = INACTIVE
Profile 4, Packet Session Status = INACTIVE
Profile 5, Packet Session Status = INACTIVE
Profile 6, Packet Session Status = INACTIVE
Profile 7, Packet Session Status = INACTIVE
Profile 8, Packet Session Status = INACTIVE
Profile 9, Packet Session Status = INACTIVE
Profile 10, Packet Session Status = INACTIVE
Profile 11, Packet Session Status = INACTIVE
Profile 12, Packet Session Status = INACTIVE
Profile 13, Packet Session Status = INACTIVE
Profile 14, Packet Session Status = INACTIVE
Profile 15, Packet Session Status = INACTIVE
Profile 16, Packet Session Status = INACTIVE
Network Information
===================
Current System Time = Sun Jan 6 14:8:40 1980
Current Service Status = No service
Current Service = Unknown
Current Roaming Status = Roaming
Network Selection Mode = Automatic
Network =
Mobile Country Code (MCC) = 505
Mobile Network Code (MNC) = 1
Packet switch domain(PS) state = Not attached
LTE Carrier Aggregation state = Deconfigured
Location Area Code (LAC) = 0
Cell ID = 0
Network MTU = Not Available
Radio Information
=================
Radio power mode = online
Channel Number = 0
Current Band = Unknown
Current RSSI(RSCP) = -57 dBm
Current ECIO = -7 dBm
Primary Scrambling Code = 498
Radio Access Technology(RAT) Preference = AUTO
Radio Access Technology(RAT) Selected = UMTS
LTE bands supported by modem:
- Bands 1 3 5 7 8 18 19 21 28 38 39 40 41.
LTE band Preference settings for the active sim(slot 0):
- Bands 1 3 5 7 8 18 19 21 28 38 39 40 41.
Non-LTE bands supported by modem:
Index:
87 - WCDMA (Europe, Japan, and China) 2100 band
91 - WCDMA US 850 band
92 - WCDMA Japan 800 band
114 - WCDMA Europe and Japan 900 band
115 - WCDMA Japan 1700 band
125 - WCDMA Japan 850 band
Non-LTE band Preference settings for the active sim(slot 0):
Index:
87 - WCDMA (Europe, Japan, and China) 2100 band
91 - WCDMA US 850 band
92 - WCDMA Japan 800 band
114 - WCDMA Europe and Japan 900 band
115 - WCDMA Japan 1700 band
125 - WCDMA Japan 850 band
===========================================
Band index reference list:
Indices 1-64 correspond to LTE bands 1-64.
Indices 65-128 correspond to Non-LTE bands.
Modem Security Information
==========================
Active SIM = NONE
Cellular Firmware List
==========================
Idx Carrier FwVersion PriVersion Status
1 DOCOMO 02.33.03.00 001.049_000 Inactive
2 GENERIC 02.33.03.00 002.072_000 Inactive
3 KDDI 02.33.03.00 001.047_000 Inactive
4 SOFTBANK 02.33.03.00 001.047_001 Inactive
5 TELSTRA 02.33.03.00 002.067_000 Active
Firmware Activation mode = AUTO
FOTA Information
=================
FOTA server poll timer (mins) = Disable
FOTA server connection retry value = 0
FOTA status = Please re-configure FOTA poll timer
GPS Information
==========================
GPS Feature = enabled
GPS Mode Configured = not configured
GPS Status = NMEA Disabled
SMS Information
===============
Incoming Message Information
----------------------------
SMS stored in modem = 0
SMS archived since booting up = 0
Total SMS deleted since booting up = 0
Storage records allocated = 25
Storage records used = 0
Number of callbacks triggered by SMS = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Outgoing Message Information
----------------------------
Total SMS sent successfully = 0
Total SMS send failure = 0
Number of outgoing SMS pending = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Last Outgoing SMS Status = SUCCESS
Copy-to-SIM Status = 0x0
Send-to-Network Status = 0x0
Report-Outgoing-Message-Number:
Reference Number = 0
Result Code = 0x0
Diag Code = 0x0 0x0 0x0 0x0 0x0
SMS Archive URL =
Modem Crashdump Information
===========================
Modem crashdump logging = off
Packet drop stats
=================
Source IP violation stats:
Total dropped IPv4 packets: 0
Recently violated IPv4 addresses (Max 4):
Total dropped IPv6 packets: 0
Recently violated IPv6 addresses (Max 4):
08-23-2022 02:22 AM
Hello
Modem Security Information
==========================
Active SIM = NONE
08-22-2022 08:24 PM
08-23-2022 12:11 AM
Hello,
looking at your config, I don't really see how this is working at all, since you have no NAT configured. Either way, can you enable debugging:
debug dialer
then shut/no shut the cellular interface, and post the output ?
08-23-2022 01:17 AM
thank you for the config, i take this as not working config? where is your other router working config ?
08-23-2022 02:17 AM
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