Hi,
I'd like to setup a wireless test network using the mac80211_hwsim
driver. The main idea is to use one simulated device as access point
(e.g wlan13) and the other as normal station (e.g. wlan20).
I was able to get hostapd and dhcpd listining on wlan13 and handling the
request coming from wlan20. So after that the configuration looks like this:
[wagi@stardust ~]$ ip addr show dev wlan13
12: wlan13: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 02:00:00:00:03:00 brd ff:ff:ff:ff:ff:ff
inet 10.0.13.1/32 scope global wlan13
inet6 fe80::ff:fe00:300/64 scope link
valid_lft forever preferred_lft forever
[wagi@stardust ~]$ ip addr show dev wlan20
26: wlan20: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 02:00:00:00:0a:00 brd ff:ff:ff:ff:ff:ff
inet 10.0.13.10/24 brd 10.0.13.255 scope global wlan20
inet6 fe80::ff:fe00:a00/64 scope link
valid_lft forever preferred_lft forever
[wagi@stardust ~]$ ip route show
10.0.13.0/24 dev wlan20 proto kernel scope link src 10.0.13.10 metric 2
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
192.168.0.0/16 dev eth0 proto kernel scope link src 192.168.101.53 metric 1
default via 192.168.0.254 dev eth0 proto static
[wagi@stardust ~]$ ip route show dev wlan13 table local
local 10.0.13.1 proto kernel scope host src 10.0.13.1
[wagi@stardust ~]$ ip route show dev wlan20 table local
local 10.0.13.10 proto kernel scope host src 10.0.13.10
broadcast 10.0.13.255 proto kernel scope link src 10.0.13.10
broadcast 10.0.13.0 proto kernel scope link src 10.0.13.10
If I 'ping 10.0.13.1' then the ip packets are not going through
mac80211_hwsim because of the local route entry. So I tried
to remove this entry with the result that I know see:
[wagi@stardust ~]$ sudo tcpdump -i wlan13
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on wlan13, link-type EN10MB (Ethernet), capture size 96 bytes
14:31:05.431507 arp who-has 10.0.13.1 tell 10.0.13.10
14:31:05.431448 arp who-has 10.0.13.1 tell 10.0.13.10
14:31:06.431486 arp who-has 10.0.13.1 tell 10.0.13.10
...
Fidling with the arp entries was not helping either. I'm a bit at a
loss. I've searched the web, nothing found what helped.
So my question is this possible what I'd like to do? If so, what's the
trick to get it working?
thanks,
daniel
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