[Openswan Users] Changing from existing cryptoalgorithms with userdefined algorithm!!!

[Nirmala Balu]

Hi ,

I am doing project in l2tp/IPsec.I have used Openswan-2.4.4 for
IPsec.It is working.But the algorithms used are aes and 3des. Can
anyone tell me if there is any possibility to change with user defined
cryto algorithm instead of aes and 3des?Also it will be helpful for me
if u tell how to use aes(not 3des) only for IPsec?
Thanks in advance,
Nirmala.