Hi Mario Here is a sample configuration tested on fxp0 on version 7.1R3.3 of Junos facing a cisco 1721 in version 12.2(7r)XM1.
Here is the sampled config from the Juniper side: protocols { rip { traceoptions { file RIP_Trace; flag auth; flag packets; } authentication-type md5; authentication-key "$9$19cREyN-wY2alKs4"; ## SECRET-DATA group Voisin { export Static; neighbor fxp0.0; } } } and here is the one from the cisco side: key chain Test key 1 key-string 7 110815041E1C ! interface FastEthernet0 ip address 192.168.63.21 255.255.255.128 ip rip authentication mode md5 ip rip authentication key-chain Test ! router rip version 2 redistribute connected network 192.168.63.0 ! The key chain in my test is "alain" I have had some problem to activate the authentication on the cisco side since it was not working at the begining. I had to type at least (or at the end, again) the command "ip rip authentication mode md5" under the interface to really see with an analyser the outgoing RIP packets with the authentication header sent on the cisco side. I am quite sure you will be able to do the same kind of configuration on the versions and hardware you are using. You will have to verify that the cisco side is realy sending some authentication header in the rip packets (using ethereal) hope this will help you . If you need, I have some more detailed traces in word format regards Alain Antoniou, Mario a écrit : >Hi all, > >I would like to implement RIPv2 MD5 authentication between an M320 >running Junos 8.4 and a Cisco 877 running 12.4T IOS in a PE-CE scenario. >However, I am seeing RIP authentication failure on the M320 end, whereas >the 877 authenticates the RIP update just fine. I am using 'key 1' on >the IOS end. > >As I understand, RFC2082 defines the key identifier, which IOS does >implement with the "key <number>" statement in the key chain definition. >I can not see where I can specify the key identifier within Junos... >Does anyone know what key Junos uses with using MD5 RIP authentication? >Also, whether anybody has successfully implemented RIP MD5 >authentication between Junos and IOS, and with what settings. I would >like to confirm whether there is interoperability between Junos and IOS >regarding MD5 RIP authentication. > >Thanks for your help. > >Regards, > >Mario. > > >Email disclaimer: > >The information contained in or attached to this communication may contain >confidential or privileged information and is intended for the addressee only. >If you are not the intended recipient of this email communication, you are >notified that any use, dissemination, distribution or copying of this message >or data is prohibited. If you have received this email in error, please notify >the sender by return email and permanently delete the document. > >The views expressed in this message are those of the individual sender, except >where the sender specifically states them to be the views of VicTrack. > >VicTrack does not guarantee that the integrity of this communication has been >maintained nor that this communication is free of viruses, interceptions or >interference. > >Please consider the environment before printing this Email. >_______________________________________________ >juniper-nsp mailing list juniper-nsp@puck.nether.net >https://puck.nether.net/mailman/listinfo/juniper-nsp > > > > _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp