[Openswan dev] ESP Null (RFC 2410)

Kabir Ahsan-r9aahw Ahsan.Kabir at freescale.com
Mon Oct 1 10:56:07 EDT 2007

Does Openswan support ESP Null? I am interested in running ESP protocol with only authentication and no confidentiality. I thought running ESP Null would give me that. But it seems to me that ESP null is not supported by the Openswan kernel. In other words, in my ipsec.conf file I put 'esp=null-sha1" and then when I execute the ipsec.conf file I get warning mentioning that the protocol/algorithm is not supported. 
Any idea as to how I can get ESP Null working? Is there any patch? 
I am working off of Michael's git repository and I cloned the 'ocf' branch. 
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