https://bugs.kde.org/show_bug.cgi?id=508270
Bug ID: 508270
Summary: network multicast and network broadcast should stay in
local domain. set IPv4header field TTL=1
Classification: Plasma
Product: plasma-mobile
Version First unspecified
Reported In:
Platform: Android
OS: Android 14.x
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
KDEconnect v1.33.4
UDP multicast to IP4 255.255.255.255 dest_port 1716 sends IP.TTL=64
mDNS broadcast to IP4 224.0.0.251 dest_port 5353 sends IP.TTL=255 for
_kdeconnect._udp.local
STEPS TO REPRODUCE
1. POWER on Android 16
2. enable Wi-Fi network
3. start "KDEconnect"
the frames travel Wi-Fi into the LAN-Access-Point into ethernet
I use "wireshark" on PC Linux Ubuntu 22.04LTS to trace the network. (ethernet)
I find the BEACON with UDPport 1716
I find the mDNS with UDPport 5353
EXPECTED RESULT
all multicast and broadcast should have limit TTL=1 for the IP4-Routers.
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