prpr
Well-Known Member
How/why does this happen? It seems wrong to me to respond to an IP address on an interface that's not up/connected on one that is but for a different subnet.
It's not proxy ARP or reverse path filtering related.
I haven't (yet) checked what happens in similar circumstances on a non-HDR device (e.g. Ubuntu VM).
It's not proxy ARP or reverse path filtering related.
I haven't (yet) checked what happens in similar circumstances on a non-HDR device (e.g. Ubuntu VM).
Code:
$ telnet 192.0.2.100
Trying 192.0.2.100...
Connected to 192.0.2.100.
Escape character is '^]'.
Humax HDR-Fox T2 (humax) 1.03.12/3.14
humax ~ # route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.32.0 * 255.255.255.240 U 0 0 0 wlan0
default 192.168.32.14 0.0.0.0 UG 0 0 0 wlan0
humax ~ # ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:54 errors:0 dropped:0 overruns:0 frame:0
TX packets:54 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4388 (4.2 Kb) TX bytes:4388 (4.2 Kb)
wlan0 Link encap:Ethernet HWaddr 00:1F:1F:xx:xx:xx
inet addr:192.168.32.13 Bcast:192.168.32.15 Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST DYNAMIC MTU:1500 Metric:1
RX packets:1858464 errors:0 dropped:0 overruns:0 frame:0
TX packets:8082 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:444832128 (424.2 Mb) TX bytes:2032449 (1.9 Mb)
humax ~ # arp
Address HWtype HWaddress Flags Mask Iface
192.168.32.14 ether xx:xx:xx:xx:xx:xx C wlan0
humax ~ # netstat -tn
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 124 192.0.2.100:23 192.0.2.254:53734 ESTABLISHED
humax ~ # ifconfig eth0
eth0 Link encap:Ethernet HWaddr DC:D3:21:xx:xx:xx
inet addr:192.0.2.100 Bcast:192.0.2.255 Mask:255.255.255.0
BROADCAST MULTICAST DYNAMIC MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:16