Racoon crashes on v2.0.3.
I have set up IPsec for mobile users on 2.0.1 with Mutual RSA + Xauth and it worked flawlessly. But after the upgrade, it would work for a few hours maybe and then problems would start:
first, two users wouldn't be able to connect from the same IP at the same time. The logs would report racoon: [Unknown Gateway/Dynamic]: NOTIFY: the packet is retransmitted by IP (1)
Shortly after, racoon would crash with the message racoon uid 0: exited on signal 11 (core dumped).
Sometimes it would restart by itself and then either Phase1 wouldn't be established at all, or it would establish but Phase2 wouldn't. (In Shrew Soft 2.1.7 it would say tunnel enabled which means phase1 is complete but ping wouldn't pass to anything)
The only way I was able to rectify this problem was to downgrade back to 2.0.1. and everything works perfectly again.