Segue la mia configurazione Mikrotik (ONT su ether1). Alcuni punti chiave:
- Il tunnel non viene su se non fai prima una richiesta DHCPv6
- Per scrupolo, faccio un release DHCPv6 ogni 12h, e ho un netwatch che fa release se va giù la linea.
- MTU di interfaccia e VLAN devono essere alzati. Alla fine sono rimasto su 9000, ma non so se è l'impostazione
più corretta.
# 2023-11-02 11:19:40 by RouterOS 7.11.2
# software id = Ixx
#
# model = RB5009UG+S+
# serial number = xxxxx
/interface bridge
add admin-mac=DC:2C:xx auto-mac=no comment=defconf name=bridge
/interface ethernet
set [ find default-name=ether1 ] advertise=10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full l2mtu=9014 mac-address=DC:2Cxx mtu=9000
/interface ipipv6
add !keepalive local-address=2a01:e11:xx mtu=1500 name=ipipv6-tunnel1 remote-address=2a01:e10:xx
/interface vlan
add interface=ether1 mtu=9000 name=WAN:836 vlan-id=836
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=default-dhcp interface=bridge lease-time=6h name=defconf
/interface bridge port
add bridge=bridge comment=defconf ingress-filtering=no interface=ether2
add bridge=bridge comment=defconf ingress-filtering=no interface=ether3
add bridge=bridge comment=defconf ingress-filtering=no interface=ether4
add bridge=bridge comment=defconf ingress-filtering=no interface=ether5
add bridge=bridge comment=defconf ingress-filtering=no interface=ether6
add bridge=bridge comment=defconf ingress-filtering=no interface=ether7
add bridge=bridge comment=defconf ingress-filtering=no interface=ether8
/ip neighbor discovery-settings
set discover-interface-list=LAN
/ip settings
set max-neighbor-entries=8192
/ipv6 settings
set max-neighbor-entries=8192
/interface detect-internet
set lan-interface-list=LAN wan-interface-list=WAN
/interface list member
add comment=defconf interface=bridge list=LAN
add interface=ipipv6-tunnel1 list=WAN
add interface=WAN:836 list=WAN
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=192.168.88.0
add address=81.xx interface=ipipv6-tunnel1 network=81.xx
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf gateway=192.168.88.1
/ip firewall filter
add action=accept chain=input comment="defconf: 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="defconf: accept ICMP" protocol=icmp
add action=accept chain=input comment="defconf: accept to local loopback (for CAPsMAN)" dst-address=127.0.0.1
add action=drop chain=input comment="defconf: drop all not coming from LAN" in-interface-list=!LAN
add action=accept chain=forward comment="defconf: 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="defconf: fasttrack" connection-state=established,related hw-offload=yes
add action=accept chain=forward comment="defconf: accept established,related, untracked" connection-state=established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid
add action=drop chain=forward comment="defconf: 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 route
add disabled=no distance=1 dst-address=0.0.0.0/0 gateway=ipipv6-tunnel1 pref-src="" routing-table=main scope=30 suppress-hw-offload=no target-scope=10
/ipv6 route
add disabled=no dst-address=/0 gateway=2a01:e11:xx
/ip service
set telnet disabled=yes
set ftp disabled=yes
set www disabled=yes
set api disabled=yes
set api-ssl disabled=yes
/ipv6 address
add address=::192.168.88.1 from-pool=ipv6-pool interface=bridge
add address=2a01:e11:xx/128 advertise=no interface=ipipv6-tunnel1
/ipv6 dhcp-client
add add-default-route=yes interface=WAN:836 pool-name=ipv6-pool request=address,prefix use-interface-duid=yes
/ipv6 firewall address-list
add address=::/128 comment="defconf: unspecified address" list=bad_ipv6
add address=::1/128 comment="defconf: lo" list=bad_ipv6
add address=fec0::/10 comment="defconf: site-local" list=bad_ipv6
add address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped" list=bad_ipv6
add address=::/96 comment="defconf: ipv4 compat" list=bad_ipv6
add address=100::/64 comment="defconf: discard only " list=bad_ipv6
add address=2001:db8::/32 comment="defconf: documentation" list=bad_ipv6
add address=2001:10::/28 comment="defconf: ORCHID" list=bad_ipv6
add address=3ffe::/16 comment="defconf: 6bone" list=bad_ipv6
/ipv6 firewall filter
add action=accept chain=input comment="defconf: 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="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=input comment="defconf: accept UDP traceroute" port=33434-33534 protocol=udp
add action=accept chain=input comment="defconf: accept DHCPv6-Client prefix delegation." dst-port=546 protocol=udp src-address=fe80::/10
add action=accept chain=input comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=input comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=input comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=input comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=input comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept established,related,untracked" connection-state=established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid
add action=drop chain=forward comment="defconf: drop packets with bad src ipv6" src-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: drop packets with bad dst ipv6" dst-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: rfc4890 drop hop-limit=1" hop-limit=equal:1 protocol=icmpv6
add action=accept chain=forward comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=forward comment="defconf: accept HIP" protocol=139
add action=accept chain=forward comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=forward comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=forward comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=forward comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=forward comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
/system clock
set time-zone-name=Europe/Rome
/system note
set show-at-login=no
/system scheduler
add interval=12h name="DHCPv6 Renew" on-event="/ipv6 dhcp-client release [find interface=WAN:836]\r\
\n" policy=ftp,reboot,read,write,policy,test,password,sniff,sensitive,romon start-date=2022-03-11 start-time=08:00:00
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
/tool netwatch
add disabled=no down-script="/ipv6 dhcp-client release [find interface=WAN:836]\r\
\n" host=1.1.1.1 http-codes="" interval=5s test-script="" type=simple up-script=""