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@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 _______________________________________________ Scion mailing list Scion@lists.inf.ethz.ch https://lists.inf.ethz.ch/mailman/listinfo/scion