Hi, We need a little help in setting up the network for our worker nodes. Currently our worker nodes are on an internal subnet which is not routed out. But the LCG installation points out that a few outbound connections from the WN's should be enabled for the experimental software to run. I do not have previous experience with setting up NAT (which I believe should be sufficient here) Our VO's are cms and dteam. So could someone please give the iptables configuration or point us to relevant docs? Thanking you Kashyap