topic Re: why the authentication fails ? in Network Access Control https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86074#M6761 <HTML><HEAD></HEAD><BODY><P>Check your IOS. Sounds like a bug to me. Anyone else run into this?</P></BODY></HTML> Tue, 16 Oct 2001 19:40:19 GMT s-doyle 2001-10-16T19:40:19Z why the authentication fails ? https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86073#M6760 <P>i am doing a site-to-site vpn experiment with two router.one is 3660(Ra).another is provided by other(Rb).if Ra initiates the negotiation, a new isakmp sa can be got but authentication fails.otherwise Rb is the initiator, the isakmp sa negotiation can be finished normally.i migrated the configurations of Rb to a 3640 router unchanged.the negotiation of the phase 1 exchange is finished normally without regard to the direction.Rb's provider assured their products were compatible with RFC2409 strictly.does Cisco have some private policies in the authentication during the phase 1 negotiation?</P><P>any help would be appreciated</P> Fri, 21 Feb 2020 17:57:29 GMT https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86073#M6760 simon.meng 2020-02-21T17:57:29Z Re: why the authentication fails ? https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86074#M6761 <HTML><HEAD></HEAD><BODY><P>Check your IOS. Sounds like a bug to me. Anyone else run into this?</P></BODY></HTML> Tue, 16 Oct 2001 19:40:19 GMT https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86074#M6761 s-doyle 2001-10-16T19:40:19Z Re: why the authentication fails ? https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86075#M6762 <HTML><HEAD></HEAD><BODY><P>i work it out, is it a bug, or a proprietary policy?</P></BODY></HTML> Fri, 30 Nov 2001 05:09:47 GMT https://community.cisco.com/t5/network-access-control/why-the-authentication-fails/m-p/86075#M6762 simon.meng 2001-11-30T05:09:47Z