Есть локальная сеть на 5-6 машин + wi-fi.
Роутер RB3011UiAS + hAP ac^2 (как wi-fi точка).
Обычное соединение с интернетом + раздача локального траффика.
В принципе работает все корректно. Однако есть пара сайтов, часто используемых в работе, которые периодически перестают работать на 5-20 минут. Причем на это время перестают работать оба.
Читал в интернете про подобные проблемы. Предлагают уменьшить окно mtu различными способами. Уменьшал. Не помогло.
Отключал фаервол. Не помогло.
Заметил, что если отключить все порты кроме необходимого минимума (3 компа), то проблема вроде не замечается.
Запустил wiershark. Обнаружил, что после трехстороннего приветствия tcp и передачи Client Hello сервер перестает отвечать.
Так выглядит соединение при зависании сайта
Так выглядит соединение при нормальной работе
Настройки роутера. (на настройку bridge2 не смотрим, я тестировал доп функционал)
# model = RB3011UiAS
/interface bridge
add admin-mac=08:55:31:E3:E2:DC arp=proxy-arp auto-mac=no name="Bridge1 192.168.0.1"
add arp=proxy-arp name="Bridge2 192.168.2.1"
/interface ethernet
set [ find default-name=ether1 ] l2mtu=1498 mtu=1400 name="eth1 WAN"
set [ find default-name=ether2 ] name=eth2
set [ find default-name=ether3 ] name=eth3
set [ find default-name=ether4 ] name=eth4 speed=100Mbps
set [ find default-name=ether5 ] name=eth5 speed=100Mbps
set [ find default-name=ether6 ] name=eth6
set [ find default-name=ether7 ] name=eth7
set [ find default-name=ether8 ] name="eth8 MAC main"
set [ find default-name=ether9 ] name=eth9
set [ find default-name=ether10 ] name="eth10 WI_FI point"
set [ find default-name=sfp1 ] disabled=yes
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip pool
add name="DHCP1 pool" ranges=192.168.0.100-192.168.0.254
add name="DHCP2 pool" ranges=192.168.2.100-192.168.2.254
/ip dhcp-server
add address-pool="DHCP1 pool" disabled=no interface="Bridge1 192.168.0.1" lease-time=23h name="DHCP server1"
add address-pool="DHCP2 pool" disabled=no interface="Bridge2 192.168.2.1" name="DHCP server2"
/interface bridge port
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth2
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth3
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth4
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth5
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth6
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth7
add bridge="Bridge1 192.168.0.1" comment=defconf interface="eth8 MAC main"
add bridge="Bridge1 192.168.0.1" comment=defconf interface=eth9
add bridge="Bridge1 192.168.0.1" comment=defconf interface="eth10 WI_FI point"
/ip neighbor discovery-settings
set discover-interface-list=LAN
/ip settings
set allow-fast-path=no secure-redirects=no send-redirects=no
/interface list member
add comment=defconf interface="Bridge1 192.168.0.1" list=LAN
add comment=defconf interface="eth1 WAN" list=WAN
add interface="Bridge2 192.168.2.1" list=LAN
/ip address
add address=192.168.0.1/24 comment=defconf interface="Bridge1 192.168.0.1" network=192.168.0.0
add address=192.168.2.1/24 comment="Intercom " interface="Bridge2 192.168.2.1" network=192.168.2.0
/ip dhcp-client
add comment=defconf disabled=no interface="eth1 WAN"
/ip dhcp-server lease
add client-id=1:c8:d7:78:1:c3:76 comment="block dishwasher" mac-address=C8:D7:78:01:C3:76 server="DHCP server1"
/ip dhcp-server network
add address=192.168.0.0/24 comment=defconf gateway=192.168.0.1 netmask=24
add address=192.168.2.0/24 gateway=192.168.2.1
/ip dns
set allow-remote-requests=yes cache-size=4048KiB query-server-timeout=5s
/ip firewall filter
add action=drop chain=input disabled=yes dst-address=192.168.2.1 in-interface="Bridge2 192.168.2.1"
add action=drop chain=input disabled=yes dst-address=192.168.0.1 in-interface="Bridge2 192.168.2.1"
add action=drop chain=forward disabled=yes dst-address=192.168.0.0/24 src-address=192.168.2.0/24
add action=drop chain=forward disabled=yes dst-address=192.168.2.0/24 src-address=192.168.0.0/24
add action=accept chain=input comment="accept established,related,untracked" connection-state=established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=invalid
add action=accept chain=input comment="accept ICMP" protocol=icmp
add action=accept chain=input comment="accept to local loopback (for CAPsMAN)" dst-address=127.0.0.1
add action=drop chain=input comment="drop all not coming from LAN" in-interface-list=!LAN
add action=accept chain=forward comment="accept in ipsec policy" ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" ipsec-policy=out,ipsec
add action=fasttrack-connection chain=forward comment="fasttrack-connection Bridge1 -> eth1" connection-state=established,related in-interface="Bridge1 192.168.0.1" out-interface="eth1 WAN"
add action=fasttrack-connection chain=forward comment="fasttrack-connection eth1 -> Bridge1" connection-state=established,related in-interface="eth1 WAN" out-interface="Bridge1 192.168.0.1"
add action=drop chain=forward comment="drop invalid" connection-state=invalid
add action=drop chain=forward comment="drop all from WAN not DSTNATed" connection-nat-state=!dstnat connection-state=new in-interface-list=WAN
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade" ipsec-policy=out,none out-interface-list=WAN
/ip service
set www-ssl disabled=no tls-version=only-1.2
/system clock
set time-zone-name=Europe/Moscow
/system identity
set name=MikroTik1
/system scheduler
add comment="reboot 1d" interval=1d name=schedule1 on-event=" /system reboot" policy=reboot start-date=jul/03/2021 start-time=05:00:00
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
/tool sniffer
set filter-interface="Bridge1 192.168.0.1" filter-ip-address=104.16.72.101/32,104.16.73.101/32,104.16.74.101/32 filter-port=http,https,dns streaming-enabled=yes streaming-server=192.168.0.4