Hello,

I've a MT as IPSEC VPN Server and CPEs are 3Com 3CR858, when tunnel is established the log shows a lot of ipsec warning messages:
17:50:50 ipsec,warning decrypted packed did not match policy
17:50:51 ipsec,warning decrypted packed did not match policy (2 events)
And after 10 minutes the tunnel becomes disconnected


MT IPSEC Configuration:

/ ip ipsec proposal
add name="sha" auth-algorithms=sha1 enc-algorithms=3des lifetime=30m lifebytes=0 pfs-group=modp768 disabled=no
/ ip ipsec policy
add src-address=192.168.10.0/24:any dst-address=192.168.110.0/24:any protocol=all action=encrypt level=require ipsec-protocols=esp tunnel=yes \
sa-src-address=200.51.xxx.123 sa-dst-address=190.11.xx.51 proposal=sha manual-sa=none dont-fragment=clear disabled=no
/ ip ipsec peer
add address=190.11.xx.51/32:500 secret="mysecret" generate-policy=no exchange-mode=aggressive send-initial-contact=no proposal-check=obey \
hash-algorithm=sha1 enc-algorithm=des dh-group=modp768 lifetime=1d lifebytes=0 disabled=no

Any help please

Thanks in advance,
Pablo