[CentOS] VPN inside VPN?

Wed Feb 9 13:29:57 UTC 2011
Fajar Priyanto <fajarpri at arinet.org>

Hi all,
Just wondering if VPN inside VPN is possible?
I've created PPTP VPN in the office.
Then from home, first I need to use company's official AT&T VPN.
Then after connected, I fire up the PPTP VPN client.
Got connected, but cannot ping the PPTP gateway, and half minute later
the PPTP got disconnected.
No obvious error message in the PPTP log.

Thank you.