1 2 Previous Next 19 Replies Latest reply: Apr 28, 2012 8:08 PM by Patrick Go to original post RSS
      • 15. Re: EIGRP Authentication

        to simplify this go to routergods.com there a video tutorial on how to set up ntp master and ntp client,

        but read the doc. as well in order to understand the theory behind it.

        • 16. Re: EIGRP Authentication
          • 17. Re: EIGRP Authentication

            Ahmed and smsnaqvi, thank you! I will go through the materials and hopefully figure out how to get NTP running too

            • 18. Re: EIGRP Authentication
              chris reynolds

              Getting the NTP setup and running would be a great thing and good added knowledge.


              I am pretty positive that I have tested running these EIGRP Auth labs and been able to get them running just by getting all of the routers timed at the same time. I have done it just by setting it up on my R1 router, copy the command I just put in and paste it into the others. It only put the routers off by a few seconds and then my neighborships formed after I changes the times on there.


              Strange that it would not do it for you unless there are some of the interface commands being missed on some of the other routers. I believe some others have suggested to verify that as well.

              • 19. Re: EIGRP Authentication

                Thank you Ahmed and everyone for mentioning that NTP needed to be setup on the routers. I struggled for 2 days beating my head against the wall on this issue. After reading this post, I configured NTP on my routers and EIGRP Authentication finally started working!!!


                R1#show ip eigrp int detail
                IP-EIGRP interfaces for process 10

                                        Xmit Queue   Mean   Pacing Time   Multicast    Pending
                Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes
                Se0                1        0/0        56      10/380        640           0
                  Hello interval is 2 sec
                  Next xmit serial <none>
                  Un/reliable mcasts: 0/0  Un/reliable ucasts: 27/30
                  Mcast exceptions: 0  CR packets: 0  ACKs suppressed: 4
                  Retransmissions sent: 0  Out-of-sequence rcvd: 1
                  Authentication mode is md5,  key-chain is "EIGRP_KEYS"

                1 2 Previous Next