Re: Re: Remotely exploitable crash in dhcpcd
Jason A. Donenfeld
Sun Jun 25 16:48:31 2017
Hi Roy,
Both interfaces now get both address, which is great.
However, I've found two small bugs in this initial stab at the implementation:
- eth0 is metric 200
- wlan0 is metric 300
- set eth0 up --> eth0 gets 10.10.10.100
- set wlan0 up --> wlan0 gets 10.10.10.100
- unplug eth0 --> ARP sent wlan0 so smooth transition
- plug eth0 --> ARP sent on wlan0 instead of on eth0, so transition is
not smooth, until gateway does its own ARP
and
- eth0 is metric 200
- wlan0 is metric 300
- set eth0 up --> eth0 gets 10.10.10.100
- set wlan0 up --> wlan0 gets 10.10.10.100
- unplug wlan0 --> ARP sent on eth0 even though it isn't needed, I think
- plug wlan0 --> ARP sent on wlan0, which is incorrect, so pings of
eth0 get interrupted temporarily
Jason
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