On Fri, 27 Jul 2018 09:23:36 +0200 Pierre Couderc <pie...@couderc.eu> wrote:
> Thank you very much, Pascal. > > When I compare what is working for you : > > 4: tap0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel > state DOWN group default qlen 1000 > link/ether 7e:89:46:3d:b0:d4 brd ff:ff:ff:ff:ff:ff > inet 192.168.1.1/24 <http://192.168.1.1/24> scope global tap0 > valid_lft forever preferred_lft forever > > > what is workin for me (XP VM): > > 4: tap0: <NO-CARRIER,BROADCAST,MULTICAST,DYNAMIC,UP> mtu 1500 qdisc > pfifo_fast state DOWN group default qlen 1000 > link/ether 7e:2f:8b:e5:a3:1e brd ff:ff:ff:ff:ff:ff > inet 192.168.164.1/24 brd 192.168.164.255 scope global tap0 > valid_lft forever preferred_lft forever > > andd what is *NOT* working for me : > > 3: tap0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast > state DOWN group default qlen 1000 > link/ether 3a:07:06:79:0a:c5 brd ff:ff:ff:ff:ff:ff > inet 192.168.164.1/32 scope global tap0 > valid_lft forever preferred_lft forever > inet6 fec0::3807:6ff:fe79:ac5/64 scope site deprecated mngtmpaddr > dynamic > valid_lft 36345sec preferred_lft 0sec > inet6 fe80::3807:6ff:fe79:ac5/64 scope link > valid_lft forever preferred_lft forever > > the difference seems to be the presence of IPV6 in 'bad' case... > And the /24 mask... maybe try to do the same as Pascal: ip address add 192.168.164.1/24 dev tap0 > > On 07/27/2018 09:02 AM, Pascal wrote: > > hello, this is working for me : > > > > # ip link show tap0 > > Device "tap0" does not exist. > > > > # ip tuntap add mode tap dev tap0 group kvm > > > > # ip link show tap0 > > 4: tap0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode > > DEFAULT group default qlen 1000 > > link/ether 7e:89:46:3d:b0:d4 brd ff:ff:ff:ff:ff:ff > > > > # ip link set dev tap0 up > > > > # ip link show tap0 > > 4: tap0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel > > state DOWN mode DEFAULT group default qlen 1000 > > link/ether 7e:89:46:3d:b0:d4 brd ff:ff:ff:ff:ff:ff > > > > # ip addr add 192.168.1.1/24 <http://192.168.1.1/24> dev tap0 > > > > # ip addr show tap0 > > 4: tap0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel > > state DOWN group default qlen 1000 > > link/ether 7e:89:46:3d:b0:d4 brd ff:ff:ff:ff:ff:ff > > inet 192.168.1.1/24 <http://192.168.1.1/24> scope global tap0 > > valid_lft forever preferred_lft forever > > > > # ping -c 4 192.168.1.1 > > PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. > > 64 bytes from 192.168.1.1 <http://192.168.1.1>: icmp_seq=1 ttl=64 > > time=0.021 ms > > 64 bytes from 192.168.1.1 <http://192.168.1.1>: icmp_seq=2 ttl=64 > > time=0.015 ms > > 64 bytes from 192.168.1.1 <http://192.168.1.1>: icmp_seq=3 ttl=64 > > time=0.019 ms > > 64 bytes from 192.168.1.1 <http://192.168.1.1>: icmp_seq=4 ttl=64 > > time=0.015 ms > > > > --- 192.168.1.1 ping statistics --- > > 4 packets transmitted, 4 received, 0% packet loss, time 3107ms > > rtt min/avg/max/mdev = 0.015/0.017/0.021/0.005 ms > > > > regards. > > > > 2018-07-26 19:19 GMT+02:00 Pierre Couderc <pie...@couderc.eu > > <mailto:pie...@couderc.eu>>: > > > > My bridge for qemu is started with : > > > > sysctl net.ipv4.ip_forward=1 > > tunctl -t tap0 -u nous > > ifconfig tap0 192.168.164.1 up > > iptables... > > > > I have replaced ipconfig line with ip: > > > > ip link set tap0 up > > ip address add 192.168.164.1 dev tap0 > > > > but it fails (no ping 192.168.164.1) in the vm. > > > > What do I miss ? > > > > Thanks > > PC > > > > > > > > >
