Support for Direct-IP mode type cards only. MBIM support is available in RouterOS v7 releases and MBIM driver is loaded automatically. If modem is not recognized in RouterOS v6 - Please test it in v7 releases before asking for support in RouterOS v6.
To enable access via a PPP interface instead of a LTE Interface, change direct IP mode with
/port firmware set ignore-directip-modem=yes command and a reboot. Note that using PPP emulation mode you may not get the same throughput speeds as using the LTE interface emulation type.
For RouterOS v7 ignore-direct-modem parameter renamed to "mode" and moved to
/interface lte settings menu.
|allow-roaming (yes | no; Default: no)||Enable data roaming for connecting to other countries data-providers. Not all LTE modems support this feature. Some modems, that do not fully support this feature, will connect to the network but will not establish an IP data connection with allow-roaming set to no.|
|apn-profiles (string; Default: default)||Which APN profile to use for this interface|
|band (integer list; Default: "")||LTE Frequency band used in communication |
|nr-band (integer list; Default: "")||5G NR Frequency band used in communication |
|comment (string; Default: "")||Descriptive name of an item|
|disabled (yes | no; Default: yes)||Whether interface is disabled or not. By default it is disabled.|
|modem-init (string; Default: "")||Modem init string (AT command that will be executed at modem startup)|
|mtu (integer; Default: 1500)||Maximum Transmission Unit. Max packet size that LTE interface will be able to send without packet fragmentation.|
|name (string; Default: "")||Descriptive name of the interface.|
|network-mode (3g | gsm | lte | 5g)||Select/force mode for LTE interface to operate with|
|operator (integer; Default: "")||used to lock device to specific operator full PLMN number is used for lock consisting from MCC+MNC. PLMN codes|
|pin (integer; Default: "")||SIM Card's PIN code.|
All network related settings are moved under profiles, starting from RouterOS 6.41
|add-default-route (yes | no)||Whether to add default route to forward all traffic over the LTE interface.|
|apn (string)||Service Provider's Access Point Name|
|authentication (pap | chap | none; Default: none)||Allowed protocol to use for authentication|
|default-route-distance (integer; Default: 2)||Sets distance value applied to auto created default route, if add-default-route is also selected. LTE route by default is with distance 2 to prefer wired routes over LTE|
|ip-type (ipv4 | ipv4-ipv6 | ipv6; Default: )||Requested PDN type|
|ipv6-interface (; Default: )||Interface on which to advertise IPv6 prefix|
|name (string; Default: )||APN profile name|
|number (integer; Default: )||APN profile number|
|passthrough-interface (; Default: )||Interface to passthrough IP configuration (activates passthrough)|
|passthrough-mac (MAC; Default: auto)||If set to auto, then will learn MAC from first packet|
|passthrough-subnet-selection (auto / p2p; Default: auto)||"auto" selects the smallest possible subnet to be used for the passthrough interface. "p2p" sets the passthrough interface subnet as /32 and picks gateway address from 10.177.0.0/16 range. The gateway address stays the same until the apn configuration is changed.|
|password (string; Default: )||Password used if any of the authentication protocols are active|
|use-network-apn (yes | no; Default: yes)||Parameter is available starting from RouterOS v7 and used only for MBIM modems. If set to yes, uses network provided APN.|
|use-peer-dns (yes | no; Default: yes)||If set to yes, uses DNS recieved from LTE interface|
|user (integer)||Username used if any of the authentication protocols are active|
LTE and router-specific LTE settings. The menu is available starting from RouterOS v7.
|mode (auto | mbim | serial; Default: auto)|
Operation mode setting.
|firmware-path (string)||Firmware path in host OS. Modem gobi firmware|
|external-antenna (auto | both | div | main | none; Default: auto)||This setting is only available for "Chateau" routers, except for Chateau 5G versions.|
|external-antenna-selected ()||This setting is only available for "Chateau" routers, except for Chateau 5G versions. Shows the currently selected antenna if "external-antenna" is set to "auto"|
|sim-slot ()||This setting is available for routers that have switchable SIM slots (LtAP, SXT). Selection options differ between products.|
It is possible to scan LTE interfaces with
/interface lte scan command. Example:
|duration (integer)||Duration of scan in seconds|
|freeze-frame-interval (integer)||time between data printout|
|number (integer)||Interface number or name|
User Info command
It is possible to send special "info" command to LTE interface with
/interface lte info command. In RouterOS v7 this command is moved to
/interface lte monitor menu.
Properties (Up to 6.40)
|user-command (string; Default: "")||send a command to LTE card to extract useful information, e.g. with AT commands|
|user-command-only (yes | no; Default: )|
User at-chat command
It is possible to send user defined "at-chat" command to LTE interface with
/interface lte at-chat command.
It is also possible to use the "wait" parameter wait=yes with the command to make "at-chat" wait for 5 seconds and return all the output instead of returning only the first received data, this is useful for some commands that return multiline output or a large block of data.
You can also use "at-chat" function in scripts and assign command output to variable.
Quick setup example
Start with network settings -
Start with network settings - Add new connection parameters under LTE apn profile (provided by network provider):
Select newly created profile for LTE connection:
LTE interface should appear with running (R) flag:
If required, add NAT Masquerade for LTE Interface to get internet to the local network:
After interface is added, you can use "info" command to see what parameters client acquired (parameters returned depends on LTE hardware device):
[admin@MikroTik] > interface/lte/monitor lte1 status: connected model: EG18-EA revision: EG18EAPAR01A12M4G current-operator: LMT current-cellid: 3103242 enb-id: 12122 sector-id: 10 phy-cellid: 480 data-class: LTE session-uptime: 15m54s imei: 86981604098XXXX imsi: 24701060267XXXX uicc: 8937101122102057XXXX primary-band: B3@20Mhz earfcn: 1300 phy-cellid: 480 dl-modulation: qpsk cqi: 7 ri: 2 mcs: 1 rssi: -68dBm rsrp: -97dBm rsrq: -9dB sinr: 6dB
Starting from RouterOS v6.41 some LTE interfaces support LTE Passthrough feature where the IP configuration is applied directly to the client device. In this case modem firmware is responsible for the IP configuration and router is used only to configure modem settings - APN, Network Technologies and IP-Type. In this configuration the router will not get IP configuration from the modem. The LTE Passthrough modem can pass both IPv4 and IPv6 addresses if that is supported by modem. Some modems support multiple APN where you can pass the traffic from each APN to a specific router interface.
Passthrough will only work for one host. Router will automatically detect MAC address of the first received packet and use it for the Passthrough. If there are multiple hosts on the network it is possible to lock the Passthrough to a specific MAC. On the host on the network where the Passthrough is providing the IP a DHCP-Client should be enabled on that interface to. Note, that it will not be possible to connect to the LTE router via public lte ip address or from the host which is used by the passthrough. It is suggested to create additional connection from the LTE router to the host for configuration purposes. For example vlan interface between the LTE router and host.
To enable the Passthrough a new entry is required or the default entry should be changed in the '/interface lte apn' menu
To configure the Passthrough on ether1:
To configure the Passthrough on ether1 host 00:0C:42:03:06:AB:
To configure multiple APNs on ether1 and ether2:
To configure multiple APNs with the same APN for different interfaces:
Boards with switchable SIM slots
|RouterBoard||Modem slot||SIM slots||Switchable|
|LtAP ||lower||2 | 3||Y|
|LtAP mini||up | down||Y|
|SXT R||a | b||Y|
SIM slots switching commands
- RouterOS v7
- RouterOS v6 after 6.45.1
- RouterOS v6 pre 6.45.1:
For more reference please see board block diagram, Quick Guide and User manual.
Follow this link - Dual SIM Application, to see examples of how to change SIM slot based on roaming status and in case the interface status is down with help of RouterOS scripts and scheduler.
Tips and Tricks
This paragraph contains information for additional features and usage cases.
Find device location using Cell information
On devices using R11e-LTE International version card (wAP LTE kit) some extra information is provided under info command (from 6.41rc61)
current-operator: 24701 lac: 40 current-cellid: 2514442
|current-operator (integer; Default: )||Contains MCC and MNC. For example: current-operator: 24701 breaks to: MCC=247 MNC=01|
|lac (integer; Default: )||location area code (LAC)|
|current-cellid (integer; Default: )||Station identification number|
Values can be used to find location in databases: Cell Id Finder
Using Cell lock
It is possible to lock R11e-LTE, R11e-LTE6 and R11e-4G modems and equipped devices to exact LTE tower. LTE info command provides currently used cellular tower information:
phy-cellid: 384 earfcn: 1300 (band 3, bandwidth 20Mhz)
|phy-cellid (integer; Default: )||Physical Cell Identification (PCI) of currently used cell tower.|
|earfcn (integer; Default: )||Absolute Radio Frequency Channel Number|
Exact tower location as well as available bands and other information can be acquired from mobile carrier or by using online services:
By using those acquired variables it's possible to send AT command to modem for locking to tower in current format:
for R11e-LTE and R11e-LTE6
AT*Cell=<mode>,<NetworkMode>,<band>,<EARFCN>,<PCI> where <mode> : 0 – Cell/Frequency disabled 1 – Frequency lock enabled 2 – Cell lock enabled <NetworkMode> 0 – GSM 1 – UMTS_TD 2 – UMTS_WB 3 – LTE <band> Not in use, leave this blank <EARFCN> earfcn from lte info <PCI> phy-cellid from lte info
To lock modem at previously used tower at-chat can be used:
For R11e-LTE all set on locks are lost after reboot or modem reset. Cell data can be also gathered from "cell-monitor".
For R11e-LTE6 cell lock works only for the primary band, this can be useful if you have multiple channels on the same band and you want to lock it to a specific earfcn. Note, that cell lock is not band-specific and for ca-band it can also use other frequency bands, unless you use band lock.
Use cell lock to set the primary band to the 1300 earfcn and use the second channel for the ca-band:
Now it uses the earfcn: 1300 for the primary channel:
primary-band: B3@20Mhz earfcn: 1300 phy-cellid: 138 ca-band: B3@5Mhz earfcn: 1417 phy-cellid: 138
You can also set it the other way around:
Now it uses the earfcn: 1417 for the primary channel:
primary-band: B3@5Mhz earfcn: 1417 phy-cellid: 138 ca-band: B3@20Mhz earfcn: 1300 phy-cellid: 138
For R11e-LTE6 modem cell lock information will not be lost after reboot or modem reset. To remove cell lock use at-chat command:
AT%CLCMD=<mode>,<mode2>,<EARFCN>,<PCI>,<PLMN> AT%CLCMD=1,1,3250,244,\"24705\" where <mode> : 0 – Cell/Frequency disabled 1 – Cell lock enabled <mode2> : 0 - Save lock for first scan 1 - Always use lock (after each reset modem will clear out previous settings no matter what is used here) <EARFCN> earfcn from lte info <PCI> phy-cellid from lte info <PLMN> Mobile operator code
All PLMN codes available here this variable can be also left blank
To lock modem to the cell - modem needs to be in non operating state, easiest way for R11e-4G modem is to add CellLock line to "modem-init" string:
Multiple cells can also be added by providing list instead of one tower information in following format:
For example to lock to two different PCIs within same band and operator:
for Chateau LTE12, Chateau 5G, LHG LTE18 and ATL LTE18
AT+QNWLOCK="common/4g",<num of cells>,[[<freq>,<pci>],...] AT+QNWLOCK=\"common/4g\",1,6300,384 where <num of cells> number of cells to cell lock <freq> earfcn from lte info <pci> phy-cellid from lte info
Single cell lock example:
Query current configuration:
Multiple cells can also be added to the cell lock. For example to lock to two different cells:
To remove the cell lock use this at-chat command:
for Chateau LTE6
< mode >: integer type; 0 Disable this function 1 Enable this function 2 Add new cell to be locked
<rat>: integer type; 0 LTE 1 WCDMA
<type>: integer type; 0 Lock PCI 1 Lock frequency
<earfcn>: integer type; the range is 0-65535.
<PCI>: integer type; If second parameter value is 0, the range is 0-503 for LTE If second parameter value is 1, the rang is 0-512 for WCDMA
Cell monitor allows to scan available nearby mobile network cells:
Gathered data can be used for more precise location detection or for Cell lock.
Enable LTE logging:
Check for errors in log:
search for CME error description online,
in this case: CME error 10 - SIM not inserted
Locking band on Huawei and other modems
To lock band for Huawei modems
/interface lte set lte1 band="" option can't be used.
It is possible to use AT commands to lock to desired band manually.
To check all supported bands run at-chat command:
Example to lock to LTE band 7:
Change last part 40 to desired band specified hexadecimal value where:
4 LTE BC3 40 LTE BC7 80000 LTE BC20 7FFFFFFFFFFFFFFF All bands etc
All band HEX values and AT commands can be found in Huawei AT Command Interface Specification guide
Check if band is locked:
For more information check modem manufacturers AT command reference manuals.
mPCIe modems with RB9xx series devices
In case your modem is not being recognized after a soft reboot, then you might need to add a delay before the USB port is being initialized. This can be done using the following command:
Boards with USB-A port and mPCIe
Some devices such as specific RB9xx's and the RBLtAP-2HnD share the same USB lines between a single mPCIe slot and a USB-A port. If auto switch is not taking place and a modem is not getting detected, you might need to switch manually to either use the USB-A or mini-PCIe:
Modem firmware upgrade
Starting from RouterOS version 6.44beta20 it is possible to upgrade modems firmware. The firmware upgrade is also possible for the Chateau series products starting from 7.1beta1 version.
Firmware update is available only as FOTA Firmware Over The Air - firmware upgrade can only be done through working mobile connection for:
Firmware update available as FOTA and as well as upgrade from file for:
Firmware update available as FOTA with access to the internet over any interface:
- )EG12-EA (Chateau LTE12)
- )RG502Q-EA (Chateau 5G)
- )EG18-EA (LHG LTE18)
Firmware updates usually includes small improvements in stability or small bug fixes that can't be included into RouterOS.
Check currently used firmware version by running:
Check if new firmware is available:
After successful upgrade issue USB power-reset, reboot device or run AT+reset command, to update modem version readout under info command:
if modem has issues connecting to cells after update, or there are any other unrelated issues - wipe old configuration with:
Avoiding tethering speed throttling
Some operators (TMobile, YOTA etc.) allows unlimited data only for device SIM card is used on, all other data coming from mobile hotspots or tethering is highly limited by volume or by throughput speed. Some sources have found out that this limitation is done by monitoring TTL (Time To Live) values from packets to determinate if limitations need to be applied (TTL is decreased by 1 for each "hop" made). RouterOS allows changing the TTL parameter for packets going from the router to allow hiding sub networks. Keep in mind that this may conflict with fair use policy.
Unlocking SIM card after multiple wrong PIN code attempts
After locking SIM card, unlock can be done through "at-chat"
Check current PIN code status:
If card is locked - unlock it by providing:
Replace PUK_code and NEW_PIN with matching values.
The command for sim slot selection changes in v6.45.1 and again in v7. Some device models like SXT, have SIM slots named "a" and "b" instead of "up" and down"