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Not able to ping tap0 interface.
http://forum.gns3.net/topic6859.html
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Author:  write2_irfan [ Tue Aug 27, 2013 7:00 pm ]
Post subject:  Not able to ping tap0 interface.

Dear folks,

Need your support. i am not able to ping tap0 interface from GNS3 router.

Below is the way which i was adopted for TAP0 configuration.

$ ls -l /dev | grep -E 'tun|tap'
crw-rw---- 1 root wheel 34, 0 Aug 26 18:44 tap0
crw-rw---- 1 root wheel 34, 1 Aug 26 18:44 tap1
crw-rw---- 1 root wheel 34, 10 Aug 26 18:44 tap10
crw-rw---- 1 root wheel 34, 11 Aug 26 18:44 tap11
crw-rw---- 1 root wheel 34, 12 Aug 26 18:44 tap12
crw-rw---- 1 root wheel 34, 13 Aug 26 18:44 tap13
crw-rw---- 1 root wheel 34, 14 Aug 26 18:44 tap14
crw-rw---- 1 root wheel 34, 15 Aug 26 18:44 tap15
crw-rw---- 1 root wheel 34, 2 Aug 26 18:44 tap2
crw-rw---- 1 root wheel 34, 3 Aug 26 18:44 tap3
crw-rw---- 1 root wheel 34, 4 Aug 26 18:44 tap4
crw-rw---- 1 root wheel 34, 5 Aug 26 18:44 tap5
crw-rw---- 1 root wheel 34, 6 Aug 26 18:44 tap6
crw-rw---- 1 root wheel 34, 7 Aug 26 18:44 tap7
crw-rw---- 1 root wheel 34, 8 Aug 26 18:44 tap8
crw-rw---- 1 root wheel 34, 9 Aug 26 18:44 tap9
crw-rw---- 1 root wheel 35, 0 Aug 26 18:44 tun0
crw-rw---- 1 root wheel 35, 1 Aug 26 18:44 tun1
crw-rw---- 1 root wheel 35, 10 Aug 26 18:44 tun10
crw-rw---- 1 root wheel 35, 11 Aug 26 18:44 tun11
crw-rw---- 1 root wheel 35, 12 Aug 26 18:44 tun12
crw-rw---- 1 root wheel 35, 13 Aug 26 18:44 tun13
crw-rw---- 1 root wheel 35, 14 Aug 26 18:44 tun14
crw-rw---- 1 root wheel 35, 15 Aug 26 18:44 tun15
crw-rw---- 1 root wheel 35, 2 Aug 26 18:44 tun2
crw-rw---- 1 root wheel 35, 3 Aug 26 18:44 tun3
crw-rw---- 1 root wheel 35, 4 Aug 26 18:44 tun4
crw-rw---- 1 root wheel 35, 5 Aug 26 18:44 tun5
crw-rw---- 1 root wheel 35, 6 Aug 26 18:44 tun6
crw-rw---- 1 root wheel 35, 7 Aug 26 18:44 tun7
crw-rw---- 1 root wheel 35, 8 Aug 26 18:44 tun8
crw-rw---- 1 root wheel 35, 9 Aug 26 18:44 tun9
$ sudo chown root /Applications/GNS3.app/Contents/Resources/dynamips*.bin
$ sudo chmod 4755 /Applications/GNS3.app/Contents/Resources/dynamips*.bin
$ ls -l /Applications/GNS3.app/Contents/Resources/dynamips*.bin
[email protected] 1 root admin 980552 Jul 5 23:43 /Applications/GNS3.app/Contents/Resources/dynamips-0.2.8-RC3-community-OSX.intel64.bin
[email protected] 1 root admin 1057220 Jul 5 23:43 /Applications/GNS3.app/Contents/Resources/dynamips-0.2.8-community-OSX.intel64.bin
$ ifconfig tap0
tap0: flags=8842<BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether a2:34:91:c4:f2:b1
open (pid 1529)
$ sudo ifconfig tap0 inet 192.168.2.222/24
$ ifconfig tap0
tap0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether a2:34:91:c4:f2:b1
inet 192.168.2.222 netmask 0xffffff00 broadcast 192.168.2.255
open (pid 1529)
$ ping -c 3 192.168.2.200
PING 192.168.2.200 (192.168.2.200): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1

--- 192.168.2.200 ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss

Configuration on R1.

interface FastEthernet0/0
ip address 192.168.2.200 255.255.255.0
duplex auto
speed auto

R1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.2.200 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
R1#

Attachments:
Tap0 Testing.png
Tap0 Testing.png [ 15.59 KiB | Viewed 2835 times ]

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