What?!? IPv6 support in APRS?
aprsd, and sometimes other software too, sends position packets to the APRS-IS using the qAI Q construct. qAI triggers packet path tracing in the APRS-IS. Each APRS-IS server inserts the hexadecimal source IP address of the previous server to the packet. Now that quite a few Tier2 APRS-IS servers have IPv6 connectivity, even some T2 hubs, IPv6 hex addresses can appear, and they are a bit longer than regular callsigns, and were getting rejected by the parser.
In this case 92E5A2B6 is the IP address of THIRD, and 200106F8020204020000000000000002 (2001:6f8:202:402::2 in normal IPv6 printed representation) is the IP address of T2HUB1 (T2FINLAND happened to be connected to T2HUB1 at the time).
Here's the complete list of changes:
- Remove / or ' ' from beginning of comment after parsing away PHG, altitude and other optional data
- Allow hexadecimal IPv6 addresses in APRS-IS paths after Q construct
- Added tests for uncompressed packet altitude (negative, too)
- Fixed destination callsign based symbol selection for 'BC'
- Updated URLs to aprs.org, etc
aprs.fi is also available using IPv6 at ipv6.aprs.fi.