well on windows it works something like this tried it but no success. some modems (mostly non usb) support AT*ENAP=1,1 which could work better mayb i just missed something AT^NDISDUP=1,1,"apn.isp.net" OK AT^DHCP? ^DHCP:4cc8bb53,f8ffffff,49c8bb53,49c8bb53,429cf7d4,469cf7d4,7200000,5760000 # no idea what this means OK dhcpcd wwan0 dhcpcd[2150]: version 5.2.12 starting dhcpcd[2150]: wwan0: rebinding lease of 83... dhcpcd[2150]: wwan0: NAK: from 83... dhcpcd[2150]: wwan0: broadcasting for a lease dhcpcd[2150]: wwan0: offered 83... from 83... dhcpcd[2150]: wwan0: acknowledged 83... from 83... dhcpcd[2150]: wwan0: checking for 83... dhcpcd[2150]: wwan0: leased 83... for 7200 seconds dhcpcd[2150]: forked to background, child pid 2179 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 83... 0.0.0.0 UG 205 0 0 wwan0 83... 0.0.0.0 255.255.255.248 U 205 0 0 wwan0 ping 8.8.8.8 -.- nothing [ 912.008526] cdc_ether 2-1:1.1: wwan0: CDC: unexpected notification 01!