problems with two NICs
I'm trying to set up a sort of a proxy server router using the new Slackware distro and iptables.
I have two NICs in the computer, one going to the router, and the other going to my windows laptop. I've gotten Linux to get an IP from the router, and to give an IP to the windows laptop. I can ping from the linux machine to the windows laptop using ping -I eth0 192.168.*.* However I cannot do this any other way. I cannot ping the linux machine from the windows machine and I cannot access any of the network services (telnet etc) on the linux machine from the windows machine. If I run iptraf on linux while I try to ping or telnet to the box from the laptop, I can see the connection attempts, but linux isn't responding. I can get linux to respond to pings if I have it ping itself on eth0 from eth0, but windows doesn't get a response from eth0. Why? I'm guessing that the network services are only running on eth1, the NIC hooked up to the internet which I'm using as my external nic, but I dont' know how to get them to run on the other one as well. Thanks in advance everyone. |
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I've cleared the iptables rules but it still happens, how else could this be related to firewalls?
I'm thinking now that it's because I'm not using a patch cable but I'm just using a regular network cable from the PC to the laptop. This would explain it, but I can still ping one way, and I can still assign DHCP addresses, would this still be a plausible explaination? |
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(BTW, I've not fully understood the inner workings of ethernet since it ceased being a single coax cable that connected everything together!) |
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