Hi, On Fri, Jan 30, 2015 at 08:28:20AM -0200, Norberto R. de Goes Jr. wrote: > Hello Sylvain. > Below the information asked by you. Thanks in advance! > Norberto > > > >>>>>>>>>> VM#1 (with lwip app): > > [root@vmGoes-fedora norberto]# brctl show > bridge name bridge id STP enabled interfaces > br0 8000.080027c07dab no p2p1 > tap0
Looks good. > [root@vmGoes-fedora norberto]# > [root@vmGoes-fedora norberto]# ip a s > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > inet 127.0.0.1/8 scope host lo > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > 2: p2p1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc > pfifo_fast master br0 state UP qlen 1000 > link/ether 08:00:27:c0:7d:ab brd ff:ff:ff:ff:ff:ff > inet6 fe80::a00:27ff:fec0:7dab/64 scope link > valid_lft forever preferred_lft forever UP ok. > 4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP > link/ether 08:00:27:c0:7d:ab brd ff:ff:ff:ff:ff:ff > inet 169.254.8.218/16 brd 169.254.255.255 scope global br0 > inet6 fe80::7084:1aff:fe21:998f/64 scope link > valid_lft forever preferred_lft forever UP ok. > 5: tap0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc > pfifo_fast master br0 state UNKNOWN qlen 500 > link/ether 8e:f4:c4:a8:9a:c8 brd ff:ff:ff:ff:ff:ff > inet6 fe80::8cf4:c4ff:fea8:9ac8/64 scope link > valid_lft forever preferred_lft forever UP ok. Note you need to use something inside 169.254.0.0/16 in lwIP as well and please check the netmask is fine on the lwIP stack. I am not sure it is not actually enforced to something like /24. > [root@vmGoes-fedora norberto]# > [root@vmGoes-fedora norberto]# ip r s > 169.254.0.0/16 dev br0 proto kernel scope link src 169.254.8.218 > [root@vmGoes-fedora norberto]# > > >>>>>>>>>> VM#2 (ping executor): > > [root@vmGoes-fedora2 norberto]# brctl show > bridge name bridge id STP enabled interfaces > [root@vmGoes-fedora2 norberto]# > [root@vmGoes-fedora2 norberto]# ip a s > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > inet 127.0.0.1/8 scope host lo > inet6 ::1/128 scope host > valid_lft forever preferred_lft forever > 2: p2p1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state > UP qlen 1000 > link/ether 08:00:27:a8:38:00 brd ff:ff:ff:ff:ff:ff > inet 169.254.4.39/16 brd 169.254.255.255 scope global p2p1 > inet6 fe80::a00:27ff:fea8:3800/64 scope link > valid_lft forever preferred_lft forever UP ok. > [root@vmGoes-fedora2 norberto]# > [root@vmGoes-fedora2 norberto]# ip r s > 169.254.0.0/16 dev p2p1 proto kernel scope link src 169.254.4.39 > 224.0.0.0/4 dev p2p1 proto static > [root@vmGoes-fedora2 norberto]# It should work if fedora2.p2p1 and fedora.p2p1 are properly bridged on host, check the lwIP netmask then tcpdump's your friend :) Sylvain
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