Can you configure ospf md5 and cleartext Authen in same area?

[mohsin.hussain]

Is it possible to configure OSPF md5 and Cleartext authentication for same area on Cisco routers?

ospf Cleartext[router]<---->ospf clrtxt[router]md5<--->md5[router]

[ziutek]

I don't believe so.

When you use the area x authentication command under Router ospf 1 for example, you use clear text. In order to use MD5 authent, you need to sue the command area x authent message. This second command overwrites the previous clear text authent command.

You could always make another area, or just use MD5 for everything.

Joe

[at]

hi,

if you configure for example cleartext authentication

under ospf process you can configure md5 authentication under interface configurtation

interface Vlan100

description

ip address 172.1.1.1 255.255.255.0

no ip proxy-arp

ip ospf authentication message-digest

ip ospf message-digest-key 1 md5 7 xxxxxx

regards alex

[ipotts]

Yes.

If 12.08, 12.08T, or 12.0(7)W05 or later the authentication type can be enabled on a per interface basis. Refer Cisco Bug ID CSCdk33792.

interface

ip ospf authentication message-digest