Hello, I'm trying to setup the following topology using IS-IS: R5 (49.0003) / \ / \ R2 ----------------- R3 (49.0001) (49.0002) | | | | R1 R4 (49.0001) (49.0002) R1 and R4 are L1 routers, R2/R3 are L1-2 and R5 is L2 only. For a specific area everything seems to be working, but R2 and R3 do not send the routes that they learnt by R1 (resp. R4) to the other areas. Is this feature supported ? (simply with IS-IS, no segment routing or other things). Here are the configs from R1 and R2 : https://pastebin.com/sHkE1Ea9 https://pastebin.com/geMV2ybQ Thanks in advance, Paul