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cisco_cellular_routers [2018/04/09 09:56]
127.0.0.1 external edit
cisco_cellular_routers [2018/07/13 15:26] (current)
Dan Mundy
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 {{page>​ad&​noeditbutton&​nofooter}} {{page>​ad&​noeditbutton&​nofooter}}
 +
 +===== Profile =====
 +
 +Following applied at exec command prompt:
 +
 +telstra.corp (eg private WAN): (see also here: [[cisco_4g_router_config_for_telstra.corp_apn_ie_telstra_ip_wan]] for some more info on telstra.corp and a config)
 +
 +<​code>​cellular 0 lte profile create 1 telstra.corp chap login@emailaddress.com th3passw0rd ipv4</​code>​
 +
 +telstra.internet:​
 +
 +<​code>​cellular 0 lte profile create 1 telstra.internet none ipv4</​code>​
 +
 +===== Dual SIM Slots =====
 +
 +eg Cisco 897
 +
 +<​blockquote>​SIM slot 0 is the primary and slot 1 is the backup by default . In order to configure slot 1 as the primary, use these configurations: ​                          
 +
 +<​code>​
 +router# configure terminal
 +router(config)#​ controller Cellular 0
 +router(config-controller)#​lte sim primary slot 1
 +</​code>​
 +<​cite>​https://​www.cisco.com/​c/​en/​us/​support/​docs/​interfaces-modules/​lte-wireless-wan-interfaces/​200455-Configuration-of-Dual-SIM-Feature-and-SI.html</​cite>​
 +</​blockquote> ​
  
 ===== Debugging ===== ===== Debugging =====
 +
 +Ping outside IP, eg 8.8.8.8, as sometimes it won't dial unless trying to push traffic. If that is the case, turn on NTP so the router tries to sync it's clock, that should force it to connect when it first boots.
 +
 +Get info about the cellular modem:
 +
 +<​code>​show cellular 0 all</​code>​
  
 It will be helpful to know which TTY line number the cellular modem is. In the following case, it's 3. It will be helpful to know which TTY line number the cellular modem is. In the following case, it's 3.
 +
 +==== Mobile antennas attached? ====
  
 <​code>​ <​code>​
-#debug chat line tty 3 +debug chat line tty 3 
-#debug ppp nego +debug ppp nego 
-#debug modem+debug modem
  
 *Jan  6 10:​01:​38.815:​ CHAT3: Attempting async line dialer script *Jan  6 10:​01:​38.815:​ CHAT3: Attempting async line dialer script
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 In this case, everything was configured correctly, but the problem was much simpler: The 4G antennas were not plugged in. The indicator light for the 4G signal strength was showing only 1 bar, and it kept dropping out. Also the cellular0 interface was showing as going down / up. In this case, everything was configured correctly, but the problem was much simpler: The 4G antennas were not plugged in. The indicator light for the 4G signal strength was showing only 1 bar, and it kept dropping out. Also the cellular0 interface was showing as going down / up.
 +
 +==== SIM plugged in? ====
 +
 +Following is example of SIM plugged the wrong way around:
 +
 +<​code>​
 +show cellular 0 all
 +
 +...
 +
 +Modem Security Information
 +==========================
 +Active SIM = NONE</​code>​
 +
 +Following is example of SIM not plugged in at all?:
 +
 +<​code>​
 +Modem Security Information
 +==========================
 +Active SIM = 0
 +SIM Status = Not inserted
 +</​code>​
 +
 +==== Is it getting wireless signal? ====
 +
 +Suspect the following suggests not getting a signal:
 +
 +<​code>​show cellular 0 all
 +
 +...
 +
 +Network Information
 +===================
 +Current System Time = Sun Jan 6 0:7:5 1980
 +Current Service Status = No service
 +</​code>​
 +
 +==== Wrong codes? ====
 +
 +Trying to get it working with telstra.corp?​
 +
 +Getting the following?:
 +
 +<​code>​
 +*Jul 10 15:​41:​39.595:​ CHAT3: Timeout expecting: OK
 +*Jul 10 15:​41:​39.595:​ CHAT3: Chat script lte finished, status = Connection timed out; remote host not responding
 +</​code>​
 +
 +Try changing the APN to telstra.internet,​
 +
 +<​code>​cellular 0 lte profile create 1 telstra.internet none ipv4</​code>​
 +
 +Try again and if you get a connection, then the codes may not be applied for telstra.corp. (or failing authentication.. but I think that may show other stuff in the debug)
 +
 +==== Signal Strength ====
 +
 +<​blockquote>​
 +<​code>​show cellular unit radio</​code>​
 +
 +Note: The RSSI should be better than –90 dBm for steady and reliable connection.
 +
 +<​cite>​[[https://​www.cisco.com/​c/​en/​us/​td/​docs/​routers/​access/​interfaces/​NIM/​software/​configuration/​guide/​4GLTENIM_SW.html|Cisco LTE guide</​cite>​ (lots of info here!)
 +</​blockquote>​
 +
 +==== My Research ====
 +
 +  * https://​www.linkedin.com/​pulse/​mimo-4g-lte-routers-when-you-need-dont-matthew-bauman - discussion about MIMO and dual antennas, signal boosters etc
cisco_cellular_routers.1523233615.txt.gz · Last modified: 2018/04/09 09:56 by 127.0.0.1