[strongSwan] StrongSwan->SonicWall issue

[Andrew Munn]

I can successfully connect from Windows to a SonicWall using the Windows 
SonicWall Global VPN Client.   When I try to connect using StrongSwan I 
get errors on the SonicWall:

IKEv2 payload processing error
IKEv2 VPN Policy not found - No VPN Policy for peer gateway

on the linux box I get

[ENC] parsing NOTIFY payload finished
[ENC] verifying payload of type NOTIFY
[ENC] NOTIFY payload verified, adding to payload list
[ENC] process payload of type NOTIFY
[ENC] verifying message structure
[ENC] found payload of type NOTIFY
[ENC] parsed IKE_SA_INIT response 0 [ N(INVAL_SYN) ]
[IKE] received INVALID_SYNTAX notify error
[IKE] IKE_SA sr[1] state change: CONNECTING => DESTROYING

ipsec.conf is like:

config setup
        charondebug="ike 2, cfg 2, enc 2"
conn sr
  left=10.37.250.0/24
  leftid=10.37.250.0/24
  leftsourceip=%config
  right=<ip removed>
  rightid=<ip removed>
  rightsubnet=10.37.250.0/24
  keyexchange=ikev2
  authby=psk
  #ike=aes256-sha1-modp2048 # tried both of these
  ike=aes128-sha1-modp2048! # ... no luck.
  esp=aes256-sha1-modp2048
  auto=start

config setup
        # strictcrlpolicy=yes
        # uniqueids = no
        charondebug="ike 2, cfg 2, enc 2"

  
ipsec.secrets is just :
192.168.123.123 <ip removed> : PSK "secret"

Any ideas what is wrong?  Thanks