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IPv6 Native IP

https://forum.mikrotik.com/viewtopic.php?t=209458

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IPv6 Native IP

Posted: Mon Jul 22, 2024 9:49 am
by Primal1807
Why my computer, mobile phone using IPv6 Native IP address to access the website will lose packets, Ping also works fine, NAT6 works fine, for this reason I also have to NAT the device's Native IP address to the router's Native IP address in order to make the IPv6 work properly!
Code: Select all
* Host example.com:443 was resolved.
* IPv6: 2606:2800:21f:cb07:6820:80da:af6b:8b2c
* IPv4: (none)
*   Trying [2606:2800:21f:cb07:6820:80da:af6b:8b2c]:443...
* Name '****:****:****:****:d885:b8f9:b89d:61a5' family 23 resolved to '****:****:****:****:d885:b8f9:b89d:61a5' family 23
* Local port: 0
* Connected to example.com (2606:2800:21f:cb07:6820:80da:af6b:8b2c) port 443
* schannel: disabled automatic use of client certificate
* ALPN: curl offers http/1.1
* Recv failure: Connection was reset
* schannel: failed to receive handshake, SSL/TLS connection failed
* Closing connection
* schannel: shutting down SSL/TLS connection with example.com port 443
* Send failure: Connection was reset
* schannel: failed to send close msg: Failed sending data to the peer (bytes written: -1)

[code]
/interface bridge
add admin-mac=**:**:**:**:**:**auto-mac=no comment=defconf name=bridge
/interface wifi
set [ find default-name=wifi1 ] channel.band=2ghz-ax .skip-dfs-channels=10min-cac .width=20/40mhz \
    configuration.country=China .mode=ap .ssid=MikroTik-61CAD9 disabled=no security.authentication-types=\
    wpa2-psk,wpa3-psk .ft=yes .ft-over-ds=yes
/interface lte
# sim not present
set [ find default-name=lte1 ] allow-roaming=no band="" sms-read=no
/interface pppoe-client
add add-default-route=yes disabled=no interface=bridge name=pppoe-out1 use-peer-dns=yes user=************
/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
add name=IPv4PAPool ranges=10.0.88.2-10.0.88.254
/ip dhcp-server
add address-pool=default-dhcp disabled=yes interface=bridge name=defconf
add address-pool=IPv4PAPool interface=bridge lease-time=1h name=server1
/queue type
add fq-codel-ecn=no kind=fq-codel name=fq-codel-ethernet-default
/queue interface
set ether1 queue=fq-codel-ethernet-default
set ether2 queue=fq-codel-ethernet-default
set ether3 queue=fq-codel-ethernet-default
set ether4 queue=fq-codel-ethernet-default
/disk settings
set auto-media-interface=bridge auto-media-sharing=yes auto-smb-sharing=yes
/interface bridge port
add bridge=bridge comment=defconf interface=ether1
add bridge=bridge comment=defconf interface=ether2
add bridge=bridge comment=defconf interface=ether3
add bridge=bridge comment=defconf interface=ether4
add bridge=bridge comment=defconf interface=wifi1
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=lte1 list=WAN
add interface=pppoe-out1 list=WAN
/ip address
add address=192.168.88.1/24 comment=defconf disabled=yes interface=bridge network=192.168.88.0
add address=10.0.88.1/16 interface=bridge network=10.0.0.0
/ip cloud
set ddns-enabled=yes ddns-update-interval=10m
/ip dhcp-server network
add address=10.0.0.0/16 gateway=10.0.88.1 netmask=16
add address=192.168.88.0/24 comment=defconf dns-server=192.168.88.1 gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes
/ip dns static
add address=192.168.88.1 comment=defconf name=router.lan
/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 service
set telnet disabled=yes
set ftp disabled=yes
set www-ssl certificate=***.****.****** disabled=no
set api disabled=yes
set api-ssl disabled=yes
/ip ssh
set host-key-type=ed25519
/ipv6 address
add from-pool=IPv6GAPool interface=bridge
/ipv6 dhcp-client
add interface=pppoe-out1 pool-name=IPv6GAPool request=prefix
/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" dst-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
/ipv6 nd
set [ find default=yes ] disabled=yes
add hop-limit=64 interface=bridge mtu=1492 ra-delay=1m ra-interval=1m-10m ra-lifetime=10m ra-preference=high \
    reachable-time=10m retransmit-interval=1m
/ipv6 nd prefix default
set preferred-lifetime=10m valid-lifetime=15m
/system clock
set time-zone-autodetect=no time-zone-name=Asia/Shanghai
/system note
set show-at-login=no
/system ntp client
set enabled=yes
/system ntp client servers
add address=ntp.tencent.com
add address=ntp.aliyun.com
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN
/user settings
set minimum-categories=2 minimum-password-length=6

Re: IPv6 Native IP

Posted: Mon Jul 22, 2024 11:51 am
by mkx
There are many reasons why IPv6 might not work. One prime example is due to ICMPv6 messages being blocked (even in IPv4 blocking ICMP doesn't really help with security, in IPv6 fully working ICMPv6 is essential for trouble-free IPv6).

If you want to get some more useful answers, then post config (at least all of /ipv6 tree) for us to review (redact sensitive data, such as WAN IPv6 addresses, but redact them in a meaningful and consistent way so that we'll be able to see if addressing and prefix lengths are fine).
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