External Moderators tmoulder Posted June 5, 2012 External Moderators Report Share Posted June 5, 2012 Hi All! I'm working with Arkadi Samarov's 570 DHCP program and trying to pull and IP from my company servers. I had this working a couple of days ago, but when I went back to play further, it won't connect. Here's the funny part - the PLC is not showing a link. I plug it into my computer, and the link shows up, but the corporate router is a no-show, like the cable is not plugged in at all I'm trying to find out if a router can outright refuse a link - I thought this was a purely electrical signal, and had no dependency on IP or anything else, but looking online for the word "link" throws up too much static for a meaningful answer. Anybody see anything like this in the past? Thanks, TM Quote Link to comment Share on other sites More sharing options...
linxchas Posted June 7, 2012 Report Share Posted June 7, 2012 Here is a document from Fluke networks with explanation how network link works: Fixing Ethernet and Fast Ethernet Link Problems One of the issues you may have - is recently (last 4 years) added feature to cysco and some other switches called: "Unidirectional Link Detection" Quote Link to comment Share on other sites More sharing options...
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