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StrongSwan ipsec ubuntu "ignoring informational payload, type NO_PROPOSAL_CHOSEN"

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http://serverfault.com – I have StrongSwan running on a ubuntu server and I'm trying to create an ipsec encrypted VPN tunnel with a Cisco 2821 router . The connection is not working and I cannot figure out why. It appears to complete phase 1, but fails at phase 2. Can anyone provide suggestions? I'm stumped. BTW, my server is in the amazon cloud. Here is my config: conn my-conn type=tunnel authby=secret auth=esp ikelifetime=86400s keylife=3600s esp=3des-sha1 ike=3des-sha1-modp1024 keyexchange=ike pfs=no forceencaps=yes # Lef (HowTos)