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samip537
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RouterOS 7.2.3 & IPv6 connectivity issues

Wed May 11, 2022 7:18 pm

I'm running an CRS326 with an Chateau LTE12 as an router.

It's running on a tagged VLAN, and I'm not able to ping the router's Unicast Global Address when it's not working, but a simple reboot fixes it? Has anyone else came across this issue and has any ideas as to how to resolve it other than a scheduled reboot of the switch?

The IPv6 issue is on VLAN202.

CRS326 config:
/interface ethernet
set [ find default-name=ether1 ] comment="Cable Modem"
set [ find default-name=ether15 ] comment="Tik Router" rx-flow-control=auto \
    tx-flow-control=auto
set [ find default-name=ether16 ] disabled=yes
set [ find default-name=sfp-sfpplus1 ] rx-flow-control=auto tx-flow-control=\
    auto
set [ find default-name=sfp-sfpplus2 ] advertise="10M-half,10M-full,100M-half,10\
    0M-full,1000M-half,1000M-full,10000M-full,2500M-full,5000M-full" comment=\
    "Trunk to Juniper" loop-protect=off rx-flow-control=auto tx-flow-control=\
    auto
/interface vlan
add interface=bridge name=MGMT vlan-id=99
/interface list
add name=LAN
add name=DT
/interface lte apn
set [ find default=yes ] ip-type=ipv4 use-network-apn=no
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/port
set 0 name=serial0
/routing bgp template
set default disabled=no output.network=bgp-networks
/routing ospf instance
add disabled=no name=default-v2
/routing ospf area
add disabled=yes instance=default-v2 name=backbone-v2
/interface bridge port
add bridge=bridge frame-types=admit-only-vlan-tagged interface=sfp-sfpplus2 \
    pvid=10
add bridge=bridge frame-types=admit-only-untagged-and-priority-tagged \
    interface=ether1 pvid=200
add bridge=bridge interface=ether17 pvid=10
add bridge=bridge broadcast-flood=no interface=ether10 pvid=10 \
    unknown-multicast-flood=no unknown-unicast-flood=no
add bridge=bridge interface=ether9 pvid=10
add bridge=bridge ingress-filtering=no interface=ether15 pvid=10
add bridge=bridge frame-types=admit-only-vlan-tagged interface=ether16 pvid=202
add bridge=bridge interface=ether2 pvid=10
/ip neighbor discovery-settings
set discover-interface-list=all protocol=lldp
/ip settings
set max-neighbor-entries=8192
/interface bridge vlan
add bridge=bridge tagged=sfp-sfpplus2 untagged=ether10,ether17,ether2 vlan-ids=\
    10
add bridge=bridge tagged=sfp-sfpplus2,ether15,bridge vlan-ids=99
add bridge=bridge tagged=sfp-sfpplus2,ether15,ether2 untagged=ether1 vlan-ids=\
    200
add bridge=bridge tagged=sfp-sfpplus2,ether15 vlan-ids=202
/interface list member
add interface=ether17 list=LAN
add interface=ether10 list=LAN
add interface=ether10 list=DT
/interface ovpn-server server
set auth=sha1,md5
/ip address
add address=192.168.88.1/24 comment=defconf disabled=yes interface=bridge \
    network=192.168.88.0
add address=192.168.99.3/24 interface=MGMT network=192.168.99.0
/ip dhcp-client
add
/ipv6 address
add address=fdaa:99::4 advertise=no interface=MGMT
/ipv6 nd
set [ find default=yes ] advertise-dns=no
/snmp
set enabled=yes location=Hallway
/system clock
set time-zone-name=Europe/Helsinki
/system identity
set name=Hallway-Switch
/system routerboard settings
set boot-os=router-os


LTE12:
/interface bridge
add name=bridge protocol-mode=none pvid=99 vlan-filtering=yes
/interface lte
set [ find ] allow-roaming=no band="" disabled=yes name=lte1
/interface wireless
set [ find default-name=wlan1 ] ssid=MikroTik
set [ find default-name=wlan2 ] ssid=MikroTik
/interface vlan
add interface=bridge name=VLAN99 vlan-id=99
add interface=bridge name=VLAN200 vlan-id=200
add interface=bridge name=VLAN202 vlan-id=202
/interface list
add name=WAN
add name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ipv6 pool
add name=pool1 prefix=2001:<snip>:<snip>:a600::/55 prefix-length=55
/interface bridge port
add bridge=bridge frame-types=admit-only-vlan-tagged interface=ether1 pvid=200
add bridge=bridge disabled=yes interface=ether2 pvid=200
/ip neighbor discovery-settings
set discover-interface-list=all protocol=lldp
/interface bridge vlan
add bridge=bridge tagged=ether1,bridge untagged=ether2 vlan-ids=200
add bridge=bridge tagged=ether1,bridge untagged=ether3 vlan-ids=202
add bridge=bridge tagged=bridge,ether1 vlan-ids=99
/interface list member
add comment=defconf interface=lte1 list=WAN
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=VLAN99 list=LAN
add interface=ether5 list=LAN
/ip address
add address=192.168.99.4/24 interface=VLAN99 network=192.168.99.0
/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
/ipv6 route
add disabled=no dst-address=2001:<snip>:<snip>:a6a0::/60 gateway=\
    2001:<snip>:<snip>:a600::2 routing-table=main
/ipv6 address
add address=2001:<snip>:<snip>:a600::1 advertise=no interface=VLAN202
/ipv6 dhcp-client
add add-default-route=yes interface=VLAN200 pool-name=DNA pool-prefix-length=56 \
    prefix-hint=::/56 rapid-commit=no request=address,prefix \
    use-interface-duid=yes use-peer-dns=no
/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=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" \
    disabled=yes 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
/system identity
set name=Router

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