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mikrotik ipip mtu странности

Есть сервер debian с ethernet, есть mikrotik. между ними поднят ipip.

на сервере из настроек только "echo net.ipv4.ip_forward=1" и поднятие ipip

auto home

iface home inet static

address ип_сервера

netmask 255.255.255.255

pointopoint мой_белый_ип

mtu 1480

ttl 32

pre-up ip tun add $IFACE mode ipip local ип_сервера remote 10.0.0.1

post-down ip tu del $IFACE

 

mikrotik

name="ipip1" mtu=auto actual-mtu=1480 local-address=10.0.0.1

remote-address=мой_белый_ип keepalive=10s,3 dscp=0 clamp-tcp-mss=no

dont-fragment=no allow-fast-path=yes

 

chain=forward action=change-mss new-mss=1360 passthrough=yes tcp-flags=syn protocol=tcp tcp-mss=1453-65535 log=no log-prefix=""

 

долбаные однокласники не хотят никак работать. в дампе вот эта хрень

post-86342-085732500 1447176461_thumb.jpg

Edited by veranson

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