I run a lot lof Linux boxes, but this is my first attempt on installing a PCI modem. I am not sure if I am close to success, or the following information means my modem wont work. lspci shows a Rockwell modem. I am trying to install it via the Knoppix /dev/modem menu. I thought Knoppix would find and install it, but no luck. When I select scan for unsuported winmodems it comes up with :
Provideing detail for device at PCI_bus 0000:00:80.0 with vendor-ID:device-ID
0700: 127a1002 )rev Serial controller: Rockwell International HCF 56K Data/FAx Modem (rev 01) (prog-if 00 [8250]
Subsystem 1092:08d4 Diamond Multimedia Systems: Unknown device 08d4
0000:00:08.0 0700:1271:1002 (rev 01)
Flags: medium devsel, IRQ 10
Memory at dc000000 (32-bit, non-prefetchable) [size=64k]
Capabilities: [40] Power Management version1
grep: /etc/modprobe.conf: No such file or directory
grep: /etc/modprobe.conf: No such file or directory
I am not sure if that means the whole modem is unsupported, or just a feature of the modem.
If this modem will not work, what modem would be recommended?

SFP TO RJ45 TRANSCEIVER SFP MODULE COPPER SFP OPTICAL PORT TO RJ45 ETHERNET PORT
$7.99
Finisar Copper SFP 1Gbps Transceiver Module FCLF8522P2BTL (34 total)
$680.00
NEW Sealed Cisco SFP-10G-LR 10GBASE-LR SFP+ 1310nm 10km *US Shipping*
$24.00
Cisco Meraki MA-SFP-1GB-SX Network Tranceiver Module
$89.00
Genuine Cisco SFP-10G-SR 0-2415-03 10 Gigabit Transceiver
$5.40
Dell Intel X710-DA2 5N7Y5 Dual-Port 10GbE SFP+ PCIe 3.0 x8 Network Adapter
$27.50
Dell Mellanox ConnectX-4 Lx CX4121C Dual 25GbE SFP28 LP | 20NJD
$25.00
HP 560SFP+ 10GB 2-port PCIe NIC Ethernet ADAPTER 669279-001 w/ (2) 10GB SFP+
$16.99
LOT of 10 DELL DPN: 0XYD50 | Intel FTLX8574D3BCV-IT 10G SFP+SR 850nm LC SFP
$45.00
Netgear ProSafe AGM732F 1000BASE-LX SFP 1310nm GBIC Module NEW SEALED
$80.00