User configuration that we are using currently with freeradius is commented below.. we are not getting any errors with cisco devices that supports PPP. But, Cisco 887 Vag device doesnt support PPP protocol at 3g interfaces. The encapsulation protocol SLIP is supported with this device. #User Definition DEFAULT Auth-Type := Accept, Calling-Station-Id == "905308555162" Framed-IP-Address = 192.168.10.1 Framed-Protocol = PPP # On no match, the user is denied access. DEFAULT Auth-Type = Accept Fall-Through = 1 DEFAULT Framed-Protocol == PPP Framed-Protocol = PPP, Framed-Compression = Van-Jacobson-TCP-IP DEFAULT Hint == "CSLIP" Framed-Protocol = SLIP, Framed-Compression = Van-Jacobson-TCP-IP DEFAULT Hint == "SLIP" Framed-Protocol = SLIP How should we define users for SLIP protocol with Cisco 887 Vag?