While I was working in this program, I found a pretty bad thing. When I configure the tunnel destination (on Router 1) and choose ip address appointed to the remote (Router 2) sub-interface (for example fa0/0.10) but not physical interface (fa0/0), the configuration doesn't save=( Even after saving startup config. Tunnel works until Router 1 reloads or until closing PT project. When I open this project again, all the configuration loads except for tunnel destination. It dissappears from running config (sh run) but it is present in startup config (sh start) What am I going to do?
P.S. Everything is OK if I choose ip address appointed to a remote physical interface (like fa0/0, not fa0/0.10)
