LTE, no connection, missing route?

jamthejame · Sat May 05, 2018 10:01 pm

that you everyone for earlier support, however, i just got a new device with LTE built in. Everything seems to work fine, i can ping and trace-route from mikrotik, but not traffic to LAN or DHCP-server clients. I'm still learning, thus hoped someone can point me to what I'm missing. Here is the present config.

[admin@MikroTik] > export
# may/05/2018 14:57:12 by RouterOS 6.42.1
# software id = K0KV-DMB1
#
# model = 953GS-5HnT
# serial number = 49C504E2567E
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-a/n channel-width=20/40mhz-Ce distance=indoors frequency=auto mode=ap-bridge \
    rx-chains=0,1,2 ssid=MikroTik-61AE09 tx-chains=0,1,2 wireless-protocol=802.11
/interface bridge
add admin-mac=********* auto-mac=no comment=BRIDGE name=bridge
/interface ethernet
set [ find default-name=sfp1 ] disabled=yes
set [ find default-name=sfp2 ] disabled=yes
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface lte apn
add apn=fast.t-mobile.com default-route-distance=1 name="T-Mobile US LITE"
/interface lte
set [ find ] apn-profiles="T-Mobile US LITE" mac-address=**************
set [ find default=yes ] supplicant-identity=MikroTik
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=default-dhcp disabled=no interface=bridge name=defconf
/port
set 1 name=usb2
/interface ppp-client
add apn=internet name=ppp-out1 port=usb2
/interface bridge port
add bridge=bridge comment=defconf interface=ether2
add bridge=bridge comment=defconf interface=ether3
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=192.168.88.0
/ip dhcp-client
add comment=defconf dhcp-options=hostname,clientid disabled=no interface=ether1
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes servers=8.8.8.8,8.8.4.4
/ip dns static
add address=192.168.88.1 name=router.lan
/ip firewall nat
add action=masquerade chain=srcnat out-interface=LTE
/system clock
set time-zone-name=America/New_York
/system routerboard settings
set silent-boot=no
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
/ip route print
Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme, 
B - blackhole, U - unreachable, P - prohibit 
 #      DST-ADDRESS        PREF-SRC        GATEWAY            DISTANCE
 0 ADS  0.0.0.0/0                          LTE                       1
 1 ADC  ***************.0/24 ****    LTE                       0
 2 ADC  192.168.88.0/24    192.168.88.1    bridge                    0

System is not showing routing table, so here it is manually:

I get a feeling that i'm missing a route...

solar77 · Sat May 05, 2018 10:17 pm

I have not used LTE routers but have a feeling this should be your problem

/ip dhcp-client
add comment=defconf dhcp-options=hostname,clientid disabled=no interface=ether1

change interface to your LTE interface and enable add default route.

give it a try

jamthejame · Sat May 05, 2018 10:19 pm

cant make those changes... the specs are locked after setting it up through LTE interface.

I had simular issue when the router was getting traffic and resolving DNS but clients wouldn't in L2TP/IPSEC situation, Sindy was able to guide me and explain.

Now, I'm experiencing similar symptoms but now with LTE.

solar77 · Sat May 05, 2018 11:08 pm

cannot have a dhcp-client on LTE interface?
well, you can still set up static route for outboud traffic

add dst-address=0.0.0.0/0 gateway=gateway of LTE connection (or just the LTE interface)

Edit: just checked your config again, this route is already added, not sure why now.c Maybe change the gateway=:LTE to the gateway IP of LTE connection ?

jamthejame · Sat May 05, 2018 11:14 pm

Ip routes, are all static. "DAC"

sindy · Sun May 06, 2018 12:46 am

I had simular issue when the router was getting traffic and resolving DNS but clients wouldn't in L2TP/IPSEC situation, Sindy was able to guide me and explain.
Now, I'm experiencing similar symptoms but now with LTE.

The problem is that similar symptoms may not have the same root cause.

I haven't really understood from your initial post what is working and what is not, but I can see that you tell your DHCP clients to use your Mikrotik as a default gateway but you don't tell them what DNS server to use:

/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf gateway=192.168.88.1

So you should use the following command:

/ip dhcp-server network set [find address="192.168.88.0/24"] dns-server=192.168.88.1

(as your dns settings say you permit yourself as a DNS server for others).

jamthejame · Sun May 06, 2018 1:34 am

Sindy, your competence is impeccable. thank you very much

LTE, no connection, missing route? [SOLVED]

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