networking question - Tilted Forum Project Discussion Community

Dilbert1234567 · 11-15-2003, 02:58 PM

ok this one is a bit complex

my computer has 3 metwork interface cards.

two 3com and one netgear

and my net works consists of 1 linksys router (4 port + uplink), and 1 linksys hub(5 port +1 uplink)

the hub's uplink is plugged into the router (non uplink) and it works just fine

here is the question.

the IP's of my cards are confusing me.

here is the read out of ipconfig:

Windows 2000 IP Configuration Ethernet adapter Local Area Connection 3: Connection-specific DNS Suffix . :
Autoconfiguration IP Address. . . : 169.254.233.190 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . :
Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : charterpipeline.com
IP Address. . . . . . . . . . . . : 192.168.1.101 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1
Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : charterpipeline.com
IP Address. . . . . . . . . . . . : 192.168.1.100 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1

i want to know why one of the cards is 169.254.233.190 instead of the logical 192.168.1.102

my router starts passing out ip's at 192.168.1.100

any ideas?

Pragma · 11-15-2003, 04:21 PM

169.254.* is Microsoft's IP block for network interfaces that are set to use DHCP but are unable to pick up an address. They "need" an address, but can't get one dynamically assigned to them, so the firmware generates an IP in that range and assigns itself to it.

Dilbert1234567 · 11-15-2003, 05:48 PM

thanks

hmm 2 of the cards are geting an ip assined by the router. but one is not.

any idea of why?

splooge · 11-16-2003, 10:03 AM

What are you trying to do? Are you aware that unless you're into advanced routing (which it sounds like you aren't) that having an IP address from the same subnet on different network cards is A Bad Thing? This confuses your computer on how to actually route.

You won't get triple the throughput just by plugging the 3 nic's into your DSL router (or switch).

11-15-2003, 02:58 PM	#1 (permalink)
Dilbert1234567 Devils Cabana Boy Location: Central Coast CA	networking question ok this one is a bit complex my computer has 3 metwork interface cards. two 3com and one netgear and my net works consists of 1 linksys router (4 port + uplink), and 1 linksys hub(5 port +1 uplink) the hub's uplink is plugged into the router (non uplink) and it works just fine here is the question. the IP's of my cards are confusing me. here is the read out of ipconfig: Windows 2000 IP Configuration Ethernet adapter Local Area Connection 3: Connection-specific DNS Suffix . : Autoconfiguration IP Address. . . : 169.254.233.190 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : charterpipeline.com IP Address. . . . . . . . . . . . : 192.168.1.101 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : charterpipeline.com IP Address. . . . . . . . . . . . : 192.168.1.100 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 i want to know why one of the cards is 169.254.233.190 instead of the logical 192.168.1.102 my router starts passing out ip's at 192.168.1.100 any ideas? __________________ Donate Blood! "Love is not finding the perfect person, but learning to see an imperfect person perfectly." -Sam Keen

11-15-2003, 04:21 PM	#2 (permalink)
Pragma I am Winter Born Location: Alexandria, VA	169.254.* is Microsoft's IP block for network interfaces that are set to use DHCP but are unable to pick up an address. They "need" an address, but can't get one dynamically assigned to them, so the firmware generates an IP in that range and assigns itself to it. __________________ Eat antimatter, Posleen-boy!

11-15-2003, 05:48 PM	#3 (permalink)
Dilbert1234567 Devils Cabana Boy Location: Central Coast CA	thanks hmm 2 of the cards are geting an ip assined by the router. but one is not. any idea of why? __________________ Donate Blood! "Love is not finding the perfect person, but learning to see an imperfect person perfectly." -Sam Keen

11-16-2003, 10:03 AM	#4 (permalink)
splooge Upright	What are you trying to do? Are you aware that unless you're into advanced routing (which it sounds like you aren't) that having an IP address from the same subnet on different network cards is A Bad Thing? This confuses your computer on how to actually route. You won't get triple the throughput just by plugging the 3 nic's into your DSL router (or switch).