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help me soon....

1. what is the default authentication protocol for GRE?what other are supported ?

2. Is authentication must be first performed for authorization in AAA

3. the feature of Kerberors that is not supported by Raius or Tacas+ is ?

des for telnet or single login for multiple services

4. tacas+ provides Des for encrypting full pay load of data? or kerberos do so?

5. is it possible to produce same digest for 2 different inputs (md5)?

6. which authentication metoheds are supooretd in ike

rsa signature

preshared keys

encrypted nonces (also or not)

what abt CA support?

please anser me soon about these confliction in mine mind ....

1 REPLY
Cisco Employee

Re: help me soon....

1. GRE is an encapsulation protocol, there is no default authentication protocol for it.

2. Yes, authentication must be performed before authorization.

3. Huh?

4. TACACS payloads are encrypted using the secret key that you setup, I don't think it's DES though. Have no idea what Kerberos does.

5. Yes, see http://www.pgp.net/pgpnet/pgp-faq/faq-appendix2.html#3

6. Do you mean client authentication (XAuth)? If so, you cna do radius, Tacacs, local or none.

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