Hi Andrej,
Quote Originally Posted by AndreiM View Post
SUSE (SUSE Linux Enterprise Server 11 SP2 (x86_64)) works some time after that begin problems:
It considers hosts from another network as directly connected and sends ARP requests.
As a result hundreds entries in arp table and no connection.
example: network ip but it sends arp for etc.

after restart all is working properly some time and then again
can you please suggest me solution?

Best Regards, Andrei
is that SLES11SP2 machine at the latest patch level?

Unless you have some according support contract, you'll have difficulties getting support for your OS level: SLES11SP2 is end-of-life since Feb 2014.

If you cannot update to SP3 and already have installed the latest patches (published Jan 2014), we might find some cause and/or fix (or work-around) via further discussion.