If it is interesting for anybody, on loaded proxy server, at beginning:
[ 21.587816] netconsole: remote ethernet address 00:04:23:af:02:ca
[ 21.591028] console [netcon0] enabled
[ 21.591486] netconsole: network logging started
[ 23.942232] sd 11:0:0:0: [sda] 1146040320 512-byte hardware sectors: (586
GB/546 GiB)
[ 23.943077] sd 11:0:0:0: [sda] Write Protect is off
[ 23.943138] sd 11:0:0:0: [sda] Mode Sense: 06 00 10 00
[ 23.943182] sd 11:0:0:0: [sda] Write cache: enabled, read cache: enabled,
supports DPO and FUA
[ 239.315726] Leak r=1 3
[ 306.969147] device eth0 entered promiscuous mode
[ 307.941261] device eth0 left promiscuous mode
[ 313.606330] device eth0 entered promiscuous mode
[ 314.886391] device eth0 left promiscuous mode