Different ips for newt.

Maybe im not understanding this correctly... but,

The ip address for a newt instance under the sites tab differs from the ip address used for the private resource tunneling through that site. Should it be the same? How would I identify the ip for the private resource in the web gui? As i only found this by either pinging the alias or looking at the newt logs. It was driving me nuts because the .5 would respond to ping but not ssh and when i disabled icmp on the priv resource and it still worked is when the dns resolution thought came to mind. Thanks

pangolin site tab shows :100.90.128.5
resource responds to 100.96.128.8