Do you have admin control over the ubuntu router? If yes, you might want to check the shared_media [#] setting on that router for the interfaces with overlapping subnets. (it is on by default, I would try turning it off).
AFAICT, the code does the right thing per rfc1812 when setting IPSKB_DOREDIRECT if shared_media is turned off. --Sowmini [#] https://www.frozentux.net/ipsysctl-tutorial/chunkyhtml/theconfvariables.html -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html