The document describes an APNIC Hackathon challenge to analyze route latencies from IPv4 and IPv6 probes to ccTLDs in Asia Pacific economies. The resolution process involved extracting .PH name server lists, identifying Asia Pacific ccTLD targets, selecting Philippine probes, measuring ping and traceroute via RIPE Atlas, and comparing results in an HTML table. Testing found route asymmetries between IPv4 and IPv6 with different hop counts and latencies. Post-challenge issues included variability in anycast routing and inability to force preferred paths.

1. APNIC HACKATHON 2023

3. K AJE N
ANURAG EPELI
TAGI
JOSEPH
ARINO
NINJA
TADIFA
BHATIA
KABINDRA
SHRESTHA

4. Is there route symmetry between
IPv4 & IPv6?
CHALLENGE

5. Analyzing route latencies
from selected Probes which
IPv4 & IPv6 capable
to ccTLDs of selected
APAC economies
RE SO LUT IO N

6. R E S O L U T I O N P R O C E S S
Extract the .PH NS list
authoritative records
Step 3
Get the list of ccTLDs in
Asia Pacific
Step 1
.PH is the selected as
POC of the tests
Step 2
Import the
measurement results
into HTML table and
compare the results
Step 6
Get the probes list
located in PH which are
capable for IPv4 & IPv6
via RIPE ATLAS
Step 4
Create measurement
(ping & traceroute) via
RIP ATLAS UI between
probes and target NS
via IPv4 & IPv6
Step 5

7. .PH
Target ccTLD
Source
3 PH PROBES
Conclusion
???

8. T E S T R E S U L T

9. PROBE 19160 TEST RESULT
Hop Count Latency
IPv4 12 55.75ms
IPv6 13 40.47ms

10. PROBE 6887 TEST RESULT
Hop Count Latency
IPv4 13 83.27ms
IPv6 15 164.96ms

11. PROBE 7032 TEST RESULT
Hop Count Latency
IPv4 10 29.88ms
IPv6 9 54.75ms

12. .PH
Target Destination
Source
3 PH PROBES
Conclusion
ASSYMETRIC

13. Technical
Routing Concern, Adaptability of
IPv6
Commercial
Quality vs Cost, Upgrade Concern
Use case

14. AFTER

15. C H A L L E N G E S A F T E R
The test result may vary depending
on the nearest anycast server.
Where
… did the test results exactly routed?
What
… is the exact AS numbers that the
test result routed?
How
… many AS hops on the test result?
Cannot
… force the preferred path
ANYCAST

16. K A J E N