Hi Sylvain and Valery. I found other configuration instructions ( http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge) about bridge filters:
"... No traffic gets trough (except ARP and STP) Your kernel might have ethernet filtering (ebtables, bridge-nf, arptables) enabled, and traffic gets filtered. The easiest way to disable this is to go to /proc/sys/net/bridge. Check if the bridge-nf-* entries in there are set to 1; in that case, set them to zero and try again. # cd /proc/sys/net/bridge # ls bridge-nf-call-arptables bridge-nf-call-iptables bridge-nf-call-ip6tables bridge-nf-filter-vlan-tagged # for f in bridge-nf-*; do echo 0 > $f; done ... " Then I tried that configuration just in the VM#1 (lwip use). Now finally the ping works fine! Thanks you very much! This issue is solved. 2015-02-07 18:18 GMT-02:00 Valery Ushakov <[email protected]>: > Sylvain Rochet wrote: > > > On Fri, Feb 06, 2015 at 01:29:28PM -0200, Norberto R. de Goes Jr. wrote: > > > >> I think the problem is in the my virtual environment (vm?s). I run the > >> application in real servers and the ping replies have success. > >> Thank you very much. > > > > Yes, this is exactly what I previously said, the problem is (probably) > > because your VM host bridge does not accept learning of foreign MAC > > address. > > "Internal Network" is not a VM/host bridge, just a piece of virtual > ethernet. > > As the first mail of the thread said: > > | But I did not get success still. The pings from VM#2 go from the > | ethernet to the "br0"(VM#1) device and after to the "tap0" device. > | There the lwIP generates an answer and sends it to the asking > | host. But then the packages disappear. They do not go back to the > | "br0" device (seen with dcpdump). > > So the pongs seems to be lost between tap0 and br0 inside VM1. > > BTW, VBox "NAT Network" is basically the same "Internal Network" with > an extra proxy process connected to it and that proxy happens to be > lwip-based :) > > The notes I refered to in my previous mail are from the initial > prototype of it that I hacked together using unixsim with tap bridged > to VM's internal network connection, i.e. the setup that is used by > Norberto, as far as I understand. > > -uwe > > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users > -- Norberto R. de Goes Jr. CPqD - DRC Tel.: +55 19 3705-4241 / Fax: +55 19 3705-6125 [email protected] <[email protected]> www.cpqd.com.br
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