Success rate is 100 percent (5/5), round-trip min/avg/max = 4/11/24 ms Sending 5, 100-byte ICMP Echos to 192.168.0.1, timeout is 2 seconds: Success rate is 80 percent (4/5), round-trip min/avg/max = 4/8/12 ms Sending 5, 100-byte ICMP Echos to 192.168.0.104, timeout is 2 seconds: Internet 192.168.0.104 6 3a16.33c4.9982 ARPA FastEthernet1/0Ģ: eth0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000ĥ: tap0: mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 500Ħ: br0: mtu 1500 qdisc noqueue state UNKNOWN Protocol Address Age (min) Hardware Addr Type Interface To see the new interfaces under the bridgeĬreate the cloud, then right on it and go to configuration Remove ip addressing and set eth0 and tap0 to promiscuous modeīridge name bridge id STP enabled interfaces The setup needs to be done as root, but once that's done, there is no need for root assistance. Sudo cp /etc/network/interfaces /etc/network/interfaces.`date +%F-%T` (more details here)įirst we need to install the utility programs and bridge-utils to be able to create network bridgesīackup the current interfaces file with a copy (that has the current date) After that you will be able to use your PC to telnet or ping to the virtual routers. see related post in GNS3 forumīelow I post the steps for creating loopback on Ubuntu. Running GNS3 on Linux and trying to reach the outside world, you will not be able to use your host PC to telnet to the virtual routers unless you create loopbacks.
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