Hi all, in the official CARP/pfsync faq here: http://www.openbsd.org/faq/pf/carp.html I found an information, that suggests that it's possible to use CARP without IPs attached to the physical interfaces used in a CARP group:
ipaddress This is the shared IP address assigned to the redundancy group. This address does not have to be in the same subnet as the IP address on the physical interface (if present). This address needs to be the same on all hosts in the group, however. And in this netbsd related guide: https://www.netbsd.org/docs/guide/en/chap-carp.html I found this : "...although with the introduction of the carpdev directive, there is no more need for IP addresses on the physical interfaces." Is it really possible to use CARP without IPs assigned to the physical interfaces? How does the communication between the interfaces of a group work if there are no IPs assigned to them? Which disadvantages could this mode of operation have compared to the classic mode with IPs assigned? (Each and every configuration example I found on the net including those on the OpenBSD site, use IPs assigned to the physical interfaces...) Thanks! Regards Christoph Private Universit?t Witten/Herdecke gGmbH Alfred-Herrhausen-Stra?e 50 D - 58448 Witten Homepage: http://www.uni-wh.de Twitter: http://twitter.com/UniWH Facebook: http://www.facebook.com/UniWH Gesch?ftsf?hrung: Prof. Dr. Martin Butzlaff (Pr?sident), Dipl. oec. Jan Peter Nonnenkamp (Kanzler) Sitz der Gesellschaft: Witten Handelsregister des Amtsgerichts Bochum Nr. HRB 8671
