Re: How to disallow readvertise IBGP routes?

policy-statement NO-EXPORT 
term 1 {
            from {
                protocol bgp;
                route-type internal;
            }

        then reject;
}

and then add this policy before your normal one ( or merge)

bgp {
    group EBGP {
        type external;
        peer-as 2;
        neighbor 1.1.1.1 {
	    local-address 1.1.1.2;
            export [ NO-EXPORT  announce-prefix ];
        }
    }

regards

alexander