[Scion] [SCION] Scion IP Gateway problem

Juan A. García-Pardo juagargi at gmail.com
Mon Nov 4 15:01:32 CET 2019


Hi YoonJong,
Our SIG tutorial misses one small step, that we are fixing right now. You
have to add a service in the topology.json files of the SCIONLab user AS
machine, that tells the services where the SIG is. This is the block:

  "SIG": {
    "sig": {
      "Addrs": {
        "IPv4": {
          "Public": {
            "Addr": "127.0.0.1",
            "L4Port": 31056
          }
        }
      }
    }
  },

There was a message in this list some weeks ago from a user that had the
same issue and he solved it like mentioned.
http://lists.inf.ethz.ch/pipermail/scion/2019-October/000050.html
Good luck!

Juan A.


On Thu, Oct 31, 2019 at 11:54 AM YoonJong, Na <nooryyaa at korea.ac.kr> wrote:

> Hi
>
> I'm currently working on SCION IP gateway(sig) from
> https://netsec-ethz.github.io/scion-tutorials/apps/remote_sig/
>
> Currently running two SCION AS from different server with different IP
> using "SCION installation from sources" option
> I checked bwtester is working between two servers (20-ffaa:1:c42,
> 20-ffaa:1:c5d), followed every step in the tutorial and double checked
> config file
> But I couldn't get "Hello World" message when I run curl command
>
> the following is the sig logs I got
>
>
> 2019-10-31 10:25:55.993263+0000 [INFO] sessMonitor: New remote
> ia=20-ffaa:1:c5d sessId=0x00 remote="Sig: 20-ffaa:1:c5d,[SIG A
> (0x0004)]:0:0 Path: Key:
> 6295594fc261a84071eeda3006017e03d0011da4000080c5aee9249c47149c30 Hops:
> [20-ffaa:1:c42 1>2 20-ffaa:0:1404 8>1 20-ffaa:1:c5d] Mtu: 1472"
> 2019-10-31 10:25:55.995533+0000 [DBUG] Ignoring scmp packet
> hdr="Class=ROUTING(1) Type=UNREACH_HOST(1) TotalLen=64B Checksum=309b
> Timestamp=2019-10-31 10:25:55.995729 +0000 UTC" src="{IA:20-ffaa:1:c5d
> Host:127.0.0.1}"
> 2019-10-31 10:25:56.003207+0000 [EROR] EgressReader: unable to find dest IA
> ip=ff02::2
> 2019-10-31 10:25:56.493114+0000 [INFO] sessMonitor: Remote SIG timeout
> ia=20-ffaa:1:c5d sessId=0x00 remote="Sig: 20-ffaa:1:c5d,[SIG A
> (0x0004)]:0:0 Path: Key:
> 6295594fc261a84071eeda3006017e03d0011da4000080c5aee9249c47149c30 Hops:
> [20-ffaa:1:c42 1>2 20-ffaa:0:1404 8>1 20-ffaa:1:c5d] Mtu: 1472"
> duration=4.500080099s
> 2019-10-31 10:25:56.493327+0000 [INFO] sessMonitor: New remote
> ia=20-ffaa:1:c5d sessId=0x00 remote="Sig: 20-ffaa:1:c5d,[SIG A
> (0x0004)]:0:0 Path: Key:
> 6295594fc261a84071eeda3006017e03d0011da4000080c5aee9249c47149c30 Hops:
> [20-ffaa:1:c42 1>2 20-ffaa:0:1404 8>1 20-ffaa:1:c5d] Mtu: 1472"
> 2019-10-31 10:25:56.495726+0000 [DBUG] Ignoring scmp packet
> hdr="Class=ROUTING(1) Type=UNREACH_HOST(1) TotalLen=64B Checksum=4091
> Timestamp=2019-10-31 10:25:56.495968 +0000 UTC" src="{IA:20-ffaa:1:c5d
> Host:127.0.0.1}"
>
>
> Both of the servers are showing the similar log
> Is there any misconfiguration possibly made?
>
>
> Best regards,
> Yoonjong
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