9.21 ipv6 redistribution
I'm confuse about why set the distance of ospf external route to 171. Isn't 121 enough? I know the eigrp external route has the distance of 170, but ospf external route wouldn't affect that part. I think the reason we adjust the distance on R6 is because the redistribution of RIP to OSPF. The external route ospf learn from rip will advertice to R6 with the distance of 110, so the R6 will use the ospf route to reach the prefix that in rip area. But as the eigrp internal route has a distance of 90 which is better than ospf, it won't has the same problem. So why set the distance to 171? Is there any point that I missed?