Invalid example for RIPv2 in User's Guide

[Steve Leung]

http://bird.network.cz/?get_doc&f=bird-6.html#ss6.10

In the link above, the RIP section's example will return config error in
bird v1.6.3. Is this an outdated example for older version of bird?

protocol rip {
        debug all;
        port 1520;
        period 12;
        garbage time 60;
        interface "eth0" { metric 3; mode multicast; };
        interface "eth*" { metric 2; mode broadcast; };
        authentication cryptographic;
        password "secret-shared-key" { algorithm hmac sha256; };
        import filter { print "importing"; accept; };
        export filter { print "exporting"; accept; };
}




Best regards,
Steve