Hello,
Just a few remarks/questions for this lesson.
I believe R2 should advertise the 192.168.12.0/24 network (network 192.168.12.0 mask 255.255.255.0), otherwise the other routers will not know about 192.168.12.1 as next-hop for 1.1.1.1 (I checked the confederations lesson).
Also on R3 the neighbor command for R6 should be .2 instead of .6.
One question is how will R5 select the path towards 1.1.1.1? In your previous post I saw that Router ID is selected, but shouldn’t be attribute 7 (eBGP path over iBGP path)?. I believe that confed-external behaves like eBGP and attribute 7 has higher precedence over Router ID.
Thank you,
Stefanita