General discussion

Locked

Twin NICS, 2 Networks, 1 TCP/IP working

By MoBuc ·
Home Lab of CMPQ DP2000 w/ 128mb RAM, NT 4.0 SP 6 & latest ROMPaqs, 2 Netgear 311 PCI 10/100 NICS hard coded IP, 1 NIC to ea. network: DP2K's BIOS sees both NICS, NTS4 Bind Tab shows IP of 2 different subnets "bind" to NICS (1 ea.);Reboot & NT only sees 1 working IP stack/network. Individually ea. network (Farside or Nearside) will work but- not together. My goal is to install Proxy Server which requires 2 segments or disjoined networks. My Farside is my internet access & not reconfigurable. What may I be over looking in my multi-homed configuration that? I believe RIP would defeat the security aspect of Proxy Server. Thus, is not used. I welcome any ideas. Thanks!

MoBuc
mobuc@yahoo.com

This conversation is currently closed to new comments.

12 total posts (Page 1 of 2)   01 | 02   Next
| Thread display: Collapse - | Expand +

All Comments

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by Stillatit In reply to Twin NICS, 2 Networks, 1 ...

It sounds like you are having problems with the drivers seeing the cards on restart. The second driver starts, looks for the NIC, and finds that it already has a driver running. After reboot, look at your event viewer and see if there are errors posted.

If you have a different brand card (with a different driver), try substituting for one of the existing cards. That way each driver will find its own card.

Good luck.

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by MoBuc In reply to Twin NICS, 2 Networks, 1 ...

No errors in Event Log. Both drivers are identical Netgear FA311 10/100 PCI. Both are automatically configured by setup disk which has no manuall overrides. Thanks for sharing this your idea. If you come up with others, feel free to let me know.:-)

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by flan In reply to Twin NICS, 2 Networks, 1 ...

well if you got 2 nics, exactly the same, the irq might be the same too, and only one would work. and if you don't see 2 nics in the network setting then you don't have 2 nics installed.

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by MoBuc In reply to Twin NICS, 2 Networks, 1 ...

Thanks for responding. As mentioned in my question both NICS show up in the BIND tab of the TCP/IP protocol properties and on the other tabs as well. But only 1(either 1) is functional by NT. That is, if I disable 1, the other works & vice verse. Both cards are installed by dedicated software which auto senses for resources. It is unlike 3com's setup where u can manually, override. The only built-in adjustments are Auto Sensing (10Base ...) & Receive Buffers. Thanks again. If any new ideas, feel free to let me know. :-)

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by chris hirst In reply to Twin NICS, 2 Networks, 1 ...

There is always a way to force IRQ's etc.
The BIOS on the m/c is probably set to boot to a plug & play OS, Set this to off ( Disabled /No or whatever) the you can set the PCI slot number to use an IRQ you specify ( The menu will be called Peripheral setup or something similar) after all 2 NIC in a m/c is not an unusual setup. Security aspect of Proxy Server ???

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by Shanghai Sam In reply to Twin NICS, 2 Networks, 1 ...

Security?? 2 NICs indeed. Proxy ideally should have 3 NICS. Then 1 can create the DMZ between Nearside & Farside. If Proxy NT Server's "MPR" (MultiProtocalRouting) is used OTHER than Proxy's core functions, U effectively defeat the primary purposeof Caching Internet information. The Frame delivers it's Packet to the Proxy, which will update the Frame, create new Source & Destination MAC, and send it through to the next segment/network/HOP. From the internet? Not good. Thus, one of several security breaches. Proxy's security is it's disallowing direct communication between inside LAN and outside Internet. The PROXY SERVER should Cache, authenticate & deliver to both sides. Like a Go-Between 2 angry friends, not speaking to each other &at the point of hurting each other, and U carry messages back-and-forth from 1 to the other. Each is secured from the other. Proxy does a little more than just let you use many IPs to access the internet via 1 IP. If that's all 1 needs it for, hey, home office? Buy a DSL/Cable Modem Router for $189 & be done. :-) Thanks for the response.

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by chris hirst In reply to Twin NICS, 2 Networks, 1 ...

There is always a way to force IRQ's etc.
The BIOS on the m/c is probably set to boot to a plug & play OS, Set this to off ( Disabled /No or whatever) the you can set the PCI slot number to use an IRQ you specify ( The menu will be called Peripheral setup or something similar) after all 2 NIC in a m/c is not an unusual setup. Security aspect of Proxy Server ???

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by chris hirst In reply to Twin NICS, 2 Networks, 1 ...

no idea why the site put two answers in ?

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by Shanghai Sam In reply to Twin NICS, 2 Networks, 1 ...

Poster rated this answer

Collapse -

Twin NICS, 2 Networks, 1 TCP/IP working

by msgtray In reply to Twin NICS, 2 Networks, 1 ...

I am not sure that I have a complete understanding of the problem, but with the low price of Fast Ethernet cards. I would install a dissimilar NIC (replace one of the 311's). If you are having a problem that is not precipitated by the identical NIC cards, it will be easier to trace and troubleshoot.

I am currently running the configuration that you want to get to without a problem (with an IBM integrated NIC and a SOHO Fast Ethernet PCI Adapter).

Ray

Back to Windows Forum
12 total posts (Page 1 of 2)   01 | 02   Next

Related Discussions

Related Forums