I was wondering how you setup the encryption with powerPC 8548 and Windows XP? I have this on my ppc:

spdadd 10.4.255.254 10.4.0.2 any -P out ipsec esp/transport//require; spdadd 10.4.0.2 10.4.255.254 any -P in ipsec esp/
transport//require; add 10.4.255.254 10.4.0.2 ah 1235 -A hmac-md5 "1234567890123456"; add 10.4.255.254 10.4.0.2 esp 1234
 -m any -E 3des-cbc "KeyIsTwentyFourBytesLong"; add 10.4.0.2 10.4.255.254 ah 1236 -A hmac-md5 "1234567890123456"; add 10
.4.0.2 10.4.255.254 esp 1234 -m any -E 3des-cbc "KeyIsTwentyFourBytesLong";

Windows makes you have authentication, but when I set it up between the 2 machines, I dont see any place to provide the 
md5 hash key. Is the hash key sent in the message somehow?

Also, is there a way to test that the encryption is working? I have the 8548 talking to an 8260, which should be using 
software encryption.