2.9 beta 19 DNS and speed issues on RB 532

RouterOS General
1

I have about 40 clients off of my MT box. I have a single T1. The layout is this:

internet T1 router – > eTHER1 on MT → Ehter3 on MT → Wireless Radios on Tower

I use PPPoE and Statics. I have a customer that PPPoE’s in local (no wireless) and has NO speed issues, however, on another one, connected to a AP off the Ether3. They PPPoE just fine.

On some sites though, such as MSN and Yahoo, the initial page loads up quickly, when you hit a link that goes to a subdomain or another domain, it goes, waiting for reply. Other sites, such as the army core of engineers, dont come up at all ??

Any suggestions?

Dennis

2

sounds like MSS problem.

3

I have this:

0 chain=prerouting src-address=10.0.1.0/24 protocol=tcp tcp-mss=0-1500
action=passthrough

The 10.0.1.x network is PPPoE network, 10.0.0.x is wireless?

Anything else i need to do?

Dennis

4

I’m having the same problems. Except i’m using MT v2.8.27. Here’s my MT setup: http://forum.mikrotik.com/t/basic-router-setup/1989/1

There are some things I found out, regarding this. Yesterday, it opened all the pages - for about an hour, but then it stopped. And if I use a proxy server (one from this page http://www.samair.ru/proxy/ ), all pages load, but slowly.


Here are a couple of those sites, that are causing these problems:
http://www.hotmail.com
http://www.yahoo.com
http://www.najdi.si
… and the list goes on …

5

Try to add a passthrough mangle rule for TCP with TCP flags set to syn.
Set TCP MSS to 1360.

6

It didn’t do any good for me. I’ll try to upgrade to 2.9 RC1, if it’ll work.

7

Maybe you have wrong rule order?

8

Here’s how i set it up:

ip firewall mangle> print
 0 D in-interface=pppoe-tomi protocol=tcp tcp-options=syn-any
     action=passthrough tcp-mss=1440

 1   in-interface=pppoe-tomi protocol=tcp tcp-options=syn-any
     action=passthrough tcp-mss=1360

And it still doesn’t work.