Hi, what I am trying to do is to connect my home router to a router in the work office using 4G SIM cards , the SIMs are up and when I ping from one router to the other using the SIM IP it is working, but if I connect for example my laptop to the router it is not connected to the office network.
Here what I have done :
I created Tap interface using following command:
ip tuntap add tap_hq mode tap. and it shows up when I ran > ifconfig :
tap_hq Link encap:Ethernet HWaddr 5A:1B:4D:CE:3B:85 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B).
but the link status is down , when I ran the command > ip link : tap_hq: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master br-lan state DOWN mode DEFAULT group default qlen 1000 link/ether 5a:1b:4d:ce:3b:85 brd ff:ff:ff:ff:ff:ff
I tried to bring it up using the following command :
ip link set tap_hq up but still it shows status down.
Can any one help me.