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Alix3d2 + Mikrotik R52nM Wifi Access point network performance
Hello,
I've assembled small AP using this hardware:
After smooth OS installation (5.6 stable) to CF card and simple AP setup using only FAQ and manpages I got it up and running: Code:
# ifconfig athn0 athn0: flags=28843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,NOINET6> mtu 1500 lladdr 4c:5e:0c:11:c3:5f priority: 4 groups: wlan media: IEEE802.11 autoselect mode 11g hostap status: active ieee80211: nwid kusniarovci chan 11 bssid 4c:5e:0c:11:c3:5f wpakey XXXXXXXXXXX wpaprotos wpa1,wpa2 wpaakms psk wpaciphers tkip,ccmp wpagroupcipher tkip inet 192.168.188.1 netmask 0xffffff00 broadcast 192.168.188.255 # cat /etc/hostname.athn0 up media autoselect mediaopt hostap mode 11g chan 11 nwid kusniarovci \ wpakey XXXXXXXX inet 192.168.188.1 255.255.255.0 Code:
linux_client$ iperf -c 192.168.188.1 -i 1 -t 60 ap# iperf -s ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 4] local 192.168.188.1 port 5001 connected with 192.168.188.32 port 48367 [ ID] Interval Transfer Bandwidth [ 4] 0.0-60.2 sec 111 MBytes 15.5 Mbits/sec Code:
wlp3s0 IEEE 802.11abgn ESSID:"kusniarovci" Mode:Managed Frequency:2.462 GHz Access Point: 4C:5E:0C:11:C3:5F Bit Rate=54 Mb/s Tx-Power=15 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-14 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:168 Missed beacon:0
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Forgot to mention, that disabling pf during iperf tests didn't have any impact on performance.
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IMHO Wireless sucks. Only when a wireless adapter has multiple antenna's it sucks less
The only wireless stuff I use are two standalone Netgear access points of which one is configured as a bridge. The AP is connected to my OpenBSD firewall box (450 Mhz PIII) located in the living room. My computer room is at the other end of the house and separated by a long corridor from the living room. My desktop and servers are connected to a switch that is plugged into the wireless bridge in the corridor. The AP and bridge have multiple antenna's and the signal strength is around 90%. This results in a connection speed that is workable. Maybe you could borrow a similar standalone AP and see whether that makes a difference. My daughter and her boyfriend bought me these two Netgear WNHDE111 units as a birthday present when when we moved into our current house. They have saved from digging, drilling and laying a cable in the garden.
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You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump |
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Agreed.
Everything, I consider important (my desktop, NAS), runs on gigabit ethernet. The thing is, that there are devices (wife's phone, Kindle ebook reader, wife's netbook), that can't be connected through ethernet. So there is a need for wireless. And since it's there, I'm sometimes lazy to look for a free cable laying somewhere around and connect my work laptop through wireless. Casual webbrowsing is ok on current setup. But what annoys me, are those slow copy operations of large files, I do from time to time. I decided to use custom device with open bios and opensource OS, because security is important to me. Anyway, I may borrow some TPlink/netgear, just to compare. |
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