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rt3 </div>
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```</div>
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rt3# bird -c /etc/bird/lab/rt3.conf -p</div>
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bird: /etc/bird/lab/rt3.conf:173:1 ASBR must be in non-stub area</div>
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```</div>
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does it mean this router is an ASBR? but this router only connect to rt4. and does not contain static route, here is the complete bird.conf</div>
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```</div>
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log syslog all;</div>
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log "/var/log/bird-rt3.log" all;</div>
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debug protocols all;</div>
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router id 172.16.8.3;</div>
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protocol device {</div>
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scan time 10;</div>
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}</div>
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protocol direct {</div>
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disabled;</div>
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ipv4;</div>
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}</div>
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filter kernel_out</div>
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prefix set reject_local_net;</div>
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{</div>
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reject_local_net = [ 4.8.3.0/28+, 172.16.34.0/30 ];</div>
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if net ~ reject_local_net then reject;</div>
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else accept;</div>
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}</div>
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protocol kernel {</div>
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ipv4 {</div>
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import none;</div>
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export filter kernel_out;</div>
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};</div>
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learn;</div>
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scan time 20;</div>
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persist;</div>
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merge paths on;</div>
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}</div>
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protocol ospf v2 {</div>
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ipv4 {</div>
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import all;</div>
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export all;</div>
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};</div>
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area 172.16.34.0 {</div>
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stub;</div>
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summary yes;</div>
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interface "veth34" {</div>
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type bcast;</div>
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cost 10;</div>
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hello 10;</div>
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};</div>
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interface "lo3" {</div>
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stub yes;</div>
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};</div>
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};</div>
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}</div>
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```</div>
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so how to identify if a router is asbr of abr?</div>
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