Messages in this thread | | | Date | Wed, 21 Apr 2004 00:38:45 +0200 | From | Edgar Toernig <> | Subject | Re: Testing Dual Ethernet via Loopback |
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Nick Popoff wrote: > > So what I'm wondering is if there is a way to force Linux to actually > utilize its network hardware in sending these packets to itself? In other > words, a ping or file transfer from an IP assigned to eth0 to another IP > assigned to eth1 should fail if I unplug the network cable connecting the > two. Any advice on this would be much appreciated.
I don't know if there's some knob for that. What I'm always doing: tcpdump on one interface and then a broadcast ping on the other one.
If you want to write a hardware test program maybe using raw ethernet packets is the way to go. These can be send directly to a specific interface and don't require it to be IP-configured. man 7 packet
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