Home › Forums › FABRIC General Questions and Discussion › Layer 3 IPv6 connection with error
Tagged: l3network
- This topic has 3 replies, 3 voices, and was last updated 1 year, 10 months ago by Mangesh Atpadikar.
-
AuthorPosts
-
January 31, 2023 at 7:23 pm #3767
Hello,
We are working on an example Jupyter notebook
create_l3network_fabnet_ipv6
. The example notebook works well. The image type of the node is rocky.
However, when we set the image type to Ubuntuimage = 'default_ubuntu_20'
node.set_image(image)
, we got the error from ping experiment:PING 2602:fcfb:c:1::2(2602:fcfb:c:1::2) 56 data bytes From 2001:400:7005:7::3 icmp_seq=1 Destination unreachable: Administratively prohibited From 2001:400:7005:7::3 icmp_seq=2 Destination unreachable: Administratively prohibited From 2001:400:7005:7::3 icmp_seq=3 Destination unreachable: Administratively prohibited From 2001:400:7005:7::3 icmp_seq=5 Destination unreachable: Administratively prohibited --- 2602:fcfb:c:1::2 ping statistics --- 5 packets transmitted, 0 received, +4 errors, 100% packet loss, time 4033ms
Both experiment ran on the same sites: UATH and SALT.
We were wondering if it was the image type causing this problem. And if there was any version of Debian that we could test with.Thanks,
Best Regards,
Xusheng- This topic was modified 1 year, 10 months ago by Xusheng Ai.
- This topic was modified 1 year, 10 months ago by Xusheng Ai.
- This topic was modified 1 year, 10 months ago by Xusheng Ai.
February 1, 2023 at 8:43 am #3772There is a image called “default_ubuntu_22” that you can use.
However, I tried both ubuntu images and there is something about their IPv6 configuration that isn’t working quite right. It looks like in ubuntu the interfaces are not correctly being put in the state ‘up’ with IPv6.
It will work if you add the following line to each of the “Configure NodeX” cells of the JupyterExample:
stdout, stderr = node1.execute(f'sudo ip -6 link set dev {node1_iface.get_os_interface()} up')
February 15, 2023 at 8:28 pm #3863Today I tried the above fix with both ‘default_ubuntu_20’ and ‘default_ubuntu_22’, and with both ‘IPv4’ and ‘IPv6’ examples. But still getting ‘Destination unreachable’ error. Both nodes were in ‘DALL’ site.
Could you please see if anything else is needed ?
For ‘IPv6’ with ‘default_ubuntu_22’ :
PING 2602:fcfb:b:4::2(2602:fcfb:b:4::2) 56 data bytes
From 2001:400:7005:7::3 icmp_seq=1 Destination unreachable: Administratively prohibited
From 2001:400:7005:7::3 icmp_seq=2 Destination unreachable: Administratively prohibited
From 2001:400:7005:7::3 icmp_seq=3 Destination unreachable: Administratively prohibited
From 2001:400:7005:7::3 icmp_seq=4 Destination unreachable: Administratively prohibited
From 2001:400:7005:7::3 icmp_seq=5 Destination unreachable: Administratively prohibited— 2602:fcfb:b:4::2 ping statistics —
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4007ms- This reply was modified 1 year, 10 months ago by Mangesh Atpadikar. Reason: Added ping logs
February 15, 2023 at 8:35 pm #3865Nevermind, the fix worked for me. Earlier didn’t put the fix at the right place. It has to be put before ‘node2_iface.ip_addr_add()’.
-
AuthorPosts
- You must be logged in to reply to this topic.