A container's 127.0.0.1 is its own loopback, so a GSMTAP feed sent to the
container's bridge address never reached the listener: it was hard-bound to
127.0.0.1.
- `simtrace-analyser-server --gsmtap-bind ADDR` (default 127.0.0.1) is passed
through GsmtapListener to GsmtapReceiver (whose bind_ip already existed),
including the receiver re-created by a start() after close. The startup
banner prints the effective bind address next to the port.
- READMEs (EN/RU) document the option, naming the container case.
- tests: the listener forwards the address on construction and on start(),
binds 0.0.0.0, and keeps the loopback default.
Verified end-to-end: with --gsmtap-bind 0.0.0.0 the socket listens on
0.0.0.0:14732 and an ATR + APDU sent to 127.0.0.1:14732 landed in the capture
session (2 messages); without the flag it listens on 127.0.0.1.
557 Python + 80 Node tests.