asked on Dual Networks cards / connecting to seperate networks
I have a single pc with 2 ethernet cards (call then A & B). The computer is running Windows XP Pro. I have connected each ethernet card to a seperate network. Ethernet A is set to DHCP and Ethernet B has a static IP Address. Ethernet A get an DHCP address of: 1.1.0.206 (IP), 255.0.0.0 (SM), 1.1.0.1 (DG). Ethernet B is static is: 1.34.67.2 (IP), 255.0.0.0 (SM).
I can ping all deives on Ethernet A, but cannot ping anything on Ethernet B. There are only currenty two devices on B's network, both have 1.34.67.x ip addresses. On of the devices is a switch that has its default gateway set to itself.
Can anyone tell me what I am doing wrong here that I cannot communicate with the devices on B? Let me know if you need any other information? Sorry if I left any important information out I am kind of new this Dual networks cards and seperate networks.
I can ping all deives on Ethernet A, but cannot ping anything on Ethernet B. There are only currenty two devices on B's network, both have 1.34.67.x ip addresses. On of the devices is a switch that has its default gateway set to itself.
Can anyone tell me what I am doing wrong here that I cannot communicate with the devices on B? Let me know if you need any other information? Sorry if I left any important information out I am kind of new this Dual networks cards and seperate networks.
Internet ProtocolsWindows XP
Last Comment
Paul MacDonald
ASKER CERTIFIED SOLUTION
Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a questionASKER
Thanks thats worked. I hate to ask a dumb question, but can you explain why that worked? You don't have to go into great detail, I just want to better understand the solution
ASKER
Just to inform I chnaged the Subnet Mask on Network B to 255.255.0.0. I can now ping both networks.
The subnet mask defines what portion of the IP address identifies the network and what portion of the IP address defines the computer.
Your subnet mask (255.0.0.0) masked both IP addresses to network 1.0.0.0 so traffic to either network probably just went out the preferred NIC (NIC A). Changing the subnet mask on NIC B (which is what I presume you did) pushed it to a different network number. What that network number is depends on what subnet mask you used.
Your subnet mask (255.0.0.0) masked both IP addresses to network 1.0.0.0 so traffic to either network probably just went out the preferred NIC (NIC A). Changing the subnet mask on NIC B (which is what I presume you did) pushed it to a different network number. What that network number is depends on what subnet mask you used.
Experts Exchange has (a) saved my job multiple times, (b) saved me hours, days, and even weeks of work, and often (c) makes me look like a superhero! This place is MAGIC!
Walt Forbes
Right, okay so now network A is 1.0.0.0 and network B is 1.34.0.0. Two different network numbers.