Hi Julian, > I have an old document for tunnel troubleshooting. I just added > > some configuration examples including recently supported tunnel modes, > HTH: > > > > http://ja.ssi.bg/TUN-HOWTO.txt <http://ja.ssi.bg/TUN-HOWTO.txt> > > > > At the moment with LVS, VIP on the real-server is not set to the loopback > > interface but the tunl0 interface. > > > > It works, as long as tunl0/hidden is set to 1, if this flag is > > used to stop ARP replies. Otherwise, the recommended device for VIPs > > is lo. > > >
Thanks a lot for sharing that how-to document. It was pretty clear and concise. I followed the document to setup LVS once again from scratch, but unfortunately it didn't resolve the response issue :( This time I tried binding the VIP on 'lo' interface instead of 'tunl0' on the real-server, and still bring tunl0 up as in your doc, but no luck. All the troubleshooting steps in your doc, like 'ip route get...' resolve fine. I don't see any IPIP packet decoding happening on the real-server when I do a tcpdump. Here's how it looks: tunl0: CIP -> VIP (packet length 40; checksum correct) ens3: VIP -> CIP (packet length 0; checksum correct) This goes on for 4-5 times until timeout on the client. Anyway, please share if anything else comes to your mind. Have a good day. Cheers, Nick _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
