RB192 - Slow Traffic from LAN to DMZ FTP 800k/sec -> 100% CP

Hardware MikroTik hardware general
1

Hi,

I recently purchased 2 RB192 devices. For PC replacement

1 Board on an 10/1 Mbit ADSL ← This board is 150km away
1 Board on an 15/1 Mbit ADSL ← This it the board currently testing

Now i found out the when i place an MiniITX based Debian server on an interface that i wil name DMZ. The FTP traffic drops to 800/1800 k/sec.

This is from Ether1 to Ether7 (Ether6 same problem)

When i do a test where the MiniITX debian and my Notebook (Windows XP SP2) is connected tot the same network i get 9000-10000 k/sec

LAN 192.168.110.252
DMZ 192.168.110.252

MiniITX Debian 192.168.110.200 when connected to LAN 192.168.200.200 when connected to DMZ. Laptop connected true ethernet 192.168.110.23

I also found out that CPU wil hop to 100% when i do a LAN ↔ DMZ test


Copied (17-11-2007 12:45:12): c:\Documents and Settings\ladmin\Bureaublad\100mb.bin → ftp://192.168.110.200/home/beheer/100mb.bin 104.857.600 bytes, 9811.5 kbytes/s

Copied (17-11-2007 12:45:31): ftp://192.168.110.200/home/beheer/100mb.bin → c:\Documents and Settings\ladmin\Bureaublad\100mb.bin 104.857.600 bytes, 9624.0 kbytes/s

system resource> print
uptime: 5d22h20m42s
version: “2.9.48”
free-memory: 14280kB
total-memory: 30428kB
cpu: “MIPS 4Kc V0.11”
cpu-frequency: 175MHz
cpu-load: 100
free-hdd-space: 30688kB
total-hdd-space: 61440kB
write-sect-since-reboot: 1094366
write-sect-total: 1445509
bad-blocks: 1

Copied (17-11-2007 12:54:41): ftp://192.168.200.200/home/beheer/100mb.bin → c:\Documents and Settings\ladmin\Bureaublad\100mb.bin 104.857.600 bytes, 1929.7 kbytes/s

system resource> print
uptime: 5d22h21m46s
version: “2.9.48”
free-memory: 14272kB
total-memory: 30428kB
cpu: “MIPS 4Kc V0.11”
cpu-frequency: 175MHz
cpu-load: 100
free-hdd-space: 30688kB
total-hdd-space: 61440kB
write-sect-since-reboot: 1094366
write-sect-total: 1445509
bad-blocks: 1


Copied (17-11-2007 12:53:02): c:\Documents and Settings\ladmin\Bureaublad\100mb.bin → ftp://192.168.200.200/home/beheer/100mb.bin 104.857.600 bytes, 796.9 kbytes/s


Any ideas what to do next ?

2

Just disabled “connection tracking” and here are the results

  • Internet connection lost (SRC-NAT no longer working)

Copied (17-11-2007 19:54:08): ftp://192.168.200.200/home/beheer/100mb.bin → c:\Documents and Settings\ladmin\Bureaublad\100mb.bin 104.857.600 bytes, 2934.6 kbytes/s

Copied (17-11-2007 19:55:38): c:\Documents and Settings\ladmin\Bureaublad\100mb.bin → ftp://192.168.200.200/home/beheer/100mb.bin 104.857.600 bytes, 1536.1 kbytes/s


As you can see the speed is doubled. Still no wire speed…

3

Just enabled connection tracking but disabled FTP Service Port

These are the results.

Copied (17-11-2007 20:00:27): ftp://192.168.200.200/home/beheer/100mb.bin → c:\100mb.bin 104.857.600 bytes, 2980.5 kbytes/s

Copied (17-11-2007 20:01:41): c:\100mb.bin → ftp://192.168.200.200/home/beheer/100mb.bin 104.857.600 bytes, 1535.2 kbytes/s

But why is the ftp service port interfearing with LAN ↔ DMZ traffic. No nat rules are applyed. Just RIP. No filtering i think

4

Dont expect wirespeed performance from port to port, the rb192 is cpu limited and you cant expect switch performance from it

5

Is there a routerboard which does support higher bandwith ?

I just dont understand the bandwith test results MT gives us. Am i getting everything out of the board the way im using it now?