Has anyone tried this? I have the 54G running 2.25.2 and two BEFSX41's - one running 1.44.3 and one running 1.50.18. The tunnel to the 41 running 1.44.3 has been (relatively) stable. The other one has been less reliable (i.e. pretty bad). I run 3DES/SHA on the 1.44.3 and, except for occassional disconnects, its pretty stable. (OK, may it needs a reconnect each morning.) The 1.50.18 connection constantly dropped after 1-2 hours when running 3DES/SHA. 54G log kepT showing errors referencing "OAKLEY" and encryption. On the theory that the encryption was producing too much work for the one tunnel, I have dropped the auth/encry down to DES/MD5. This seems to be more stable.