[Scion] Starting self built fails with downloaded config

Frei Matthias matthias.frei at inf.ethz.ch
Tue Oct 29 12:29:37 CET 2019


Hi Joel,

this sounds like you're running scionproto/scion, not netsec-ethz/netsec-scion -- in our scionlab branch, we have a patch that suppresses the error (https://github.com/netsec-ethz/netsec-scion/pull/35), as we don't supply this file with our configuration tarball.
Just be aware that scionproto/scion master may or may not be compatible with the version of SCION running on the SCIONLab infrastructure.

Any way, it's save to ignore this error message.

Best Regards,
Matthias


________________________________
From: Scion <scion-bounces at lists.inf.ethz.ch> on behalf of Fischer Joel <fischjoe at student.ethz.ch>
Sent: Tuesday, 29 October 2019 11:21:16 AM
To: scion at lists.inf.ethz.ch
Subject: [Scion] Starting self built fails with downloaded config

Hi

In the tutorial for building SCION from sources (https://netsec-ethz.github.io/scion-tutorials/install/src/) I got the following error after running "./scion start" as described in "Configuration > 4. Restart SCION":

Traceback (most recent call last):
  File "python/integration/set_ipv6_addr.py", line 90, in <module>
    main()
  File "python/integration/set_ipv6_addr.py", line 71, in main
    overlay = get_overlay()
  File "python/integration/set_ipv6_addr.py", line 67, in get_overlay
    return read_file(file_path).strip()
  File "/home/fischjoe/go/src/github.com/scionproto/scion2/python/lib/util.py<http://github.com/scionproto/scion2/python/lib/util.py>", line 73, in read_file
    file_path, e.strerror)) from None
lib.errors.SCIONIOError: Unable to open 'gen/overlay': No such file or directory

Creating a file called overlay with "UDP/IPv4" in "gen" has solved the issue. Is this a correct configuration or will it break down the road?

I am also not sure whether I missed something in the tutorial or whether a step is missing from it.

Thanks for your help.

Cheers,
Joel
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