i using on dos 6.22,i success using 1 network adapter with ms clinet 3.0 for tcp/ip function,but i can't using 2 network adapter in the same time, i check it the ms client not support 2 NIC using tcp/ip in same time, what can i do for using 2 nic using tcp/ip on same time?thx ip address: 192.168.1.100 <for NIC 1 192.168.1.101 <for NIC 2 network adatper:Realtek 8139C NIC1 : mac address:00d0c0a1001b ,busno:0,deviceno:12 NIC2: mac address:00d0c0a1001a,busno:0,device:13 single nic1 protocol.ini file:[network.setup] version=0x3110 netcard=RTL8139,1,RTL8139,1 transport=ms$nwlink,MS$NWLINK transport=ms$ndishlp,MS$NDISHLP transport=tcpip,TCPIP lana0=RTL8139,1,ms$nwlink lana1=RTL8139,1,ms$ndishlp lana2=RTL8139,1,tcpip [TCPIP] NBSessions=6 DefaultGateway0=192 168 1 1 SubNetMask0=255 255 255 0 IPAddress0=192 168 1 100 DisableDHCP=1 DriverName=TCPIP$ BINDINGS=RTL8139 LANABASE=1 [RTL8139] DeviceNo=12 ETHERID=@00D0C9A1001B DriverName=rtsnd$ Medium=_Auto [MS$NWLINK] FRAME=ETHERNET_802.2 DriverName=nwlink$ BINDINGS=RTL8139 [protman] DriverName=PROTMAN$ PRIORITY=MS$NDISHLP [MS$NDISHLP] DriverName=ndishlp$ BINDINGS=RTL8139 2 NIC adapter protocol.ini [network.setup] version=0x3110 netcard=RTL8139,1,RTL8139,1 netcard=RTL8139,2,RTL81392,1 transport=ms$nwlink,MS$NWLINK transport=ms$nwlink2,MS$NWLINK2 transport=ms$ndishlp,MS$NDISHLP transport=ms$ndishlp2,MS$NDISHLP2 transport=tcpip,TCPIP transport=tcpip2,TCPIP2 lana0=RTL8139,1,ms$nwlink lana1=RTL8139,2,ms$nwlink2 lana2=RTL8139,1,ms$ndishlp lana3=RTL8139,2,ms$ndishlp2 lana4=RTL8139,1,tcpip lana5=RTL8139,2,tcpip2 [MS$NWLINK] FRAME=ETHERNET_802.2 DriverName=nwlink$ BINDINGS=RTL8139 [MS$NWLINK2] FRAME=ETHERNET_802.2 DriverName=nwlink$ BINDINGS=RTL81392 [RTL81392] DeviceNo=13 ETHERID=@00D0C0A1001A DriverName=rtsnd2$ Medium=_Auto [TCPIP] NBSessions=6 DefaultGateway0=192 168 1 1 SubNetMask0=255 255 255 0 IPAddress0=192 168 1 100 DisableDHCP=1 DriverName=TCPIP$ BINDINGS=RTL8139 LANABASE=2 [TCPIP] NBSessions=6 DefaultGateway0=192 168 1 1 SubNetMask0=255 255 255 0 IPAddress0=192 168 1 101 DisableDHCP=1 DriverName=TCPIP$ BINDINGS=RTL81392 LANABASE=2 [RTL8139] DeviceNo=12 ETHERID=@00D0C0A1001B DriverName=rtsnd$ Medium=_Auto [protman] DriverName=PROTMAN$ PRIORITY=MS$NDISHLP [MS$NDISHLP] DriverName=ndishlp$ BINDINGS=RTL8139 [MS$NDISHLP2] DriverName=ndishlp$ BINDINGS=RTL81392

Under MS-DOS 6.22 you have 600K free memory, MS Network Client 3.0 in the most basic install will use 250K. Secondly dual NIC's are not supported, even if it was supported you would have memory issues. If you must have 2 NIC's and TCP/IP then the only solution is Packet Drivers and WATTCP Stack, see: http://www.smashco.com/wattcp.asp Though if you want to connect to Windows Networking and *NIX Samba PC's it is more difficult. If you only want to play games over IPX then there are IPX shims for Packet Drivers

thank you for help,but i don't know how can use wattcp stack of using 2 nic tcp/ip on dos without MS Network Client 3.0 ,thx

You ditch M$ NWC 3.0 completely ! Depends on what you wish to achieve is achievable ? This page has a section called: "small small How To : Connect to a LAN and run TCP/IP under DOS" http://users.pandora.be/mydotcom/li...

Could you able to bring up two NIC in DOS, if so please let me know I was not able to find it up.