# area virtual-link authentication message-digest

#### Syntax

[ no ] area { areaID | areaIdInt } virtual-link ipAddress authentication message-digest

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies that MD5 authentication is used for the virtual link. The no version sets the authentication for the virtual link to none, but leaves any configured MD5 key intact.

#### Options

- areaId—OSPF area ID in IP address format
- areaIdInt—OSPF area ID as a decimal value in the range 0–4294967295
- ipAddress—IP address of the virtual link neighbor

#### Mode

Router Configuration