firewall rukes for OPC?

I need to allow an OPC client and server to connect through one of my firewalls. Can anyone tell me what ports I need to open up for this to work? -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most

Re: firewall rukes for OPC?

You are likely dealing with an OPC Client that uses DCOM on TCP 135. Not sure if you want to open this to the public though. On 7/22/2010 1:58 PM, stan wrote: I need to allow an OPC client and server to connect through one of my firewalls. Can anyone tell me what ports I need to open up for