initial connection to control plane fails due to wrong interface selection - not ipv4 vs ipv6. about tailscale HOT 8 OPEN

root@udmp2333:/data/tailscale# telnet 176.58.93.154 443
Trying 176.58.93.154...
Connected to 176.58.93.154.
Escape character is '^]'.
^]

telnet> quit
Connection closed.

root@udmp2333:/data/tailscale# telnet 2a05:d014:386:202:f041:44b6:9559:668 443
Trying 2a05:d014:386:202:f041:44b6:9559:668...
telnet: Unable to connect to remote host: Network is unreachable
root@udmp2333:/data/tailscale# telnet controlplane.tailscale.com 443
Trying 3.125.149.81...
Connected to controlplane.tailscale.com.
Escape character is '^]'.
^]

telnet> quit
Connection closed.

Apr 18 07:06:09 udmp2333 systemd[1]: Starting Tailscale node agent...
░░ Subject: A start job for unit tailscaled.service has begun execution
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░ 
░░ A start job for unit tailscaled.service has begun execution.
░░ 
░░ The job identifier is 3912.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: logtail started
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Program starting: v1.64.0-t7e9bebdb2-gf314c5be5, Go 1.22.2: []string{"/usr/sbin/tailscaled", "--state=/var/lib/tailscale/tailscaled.state", "--socket=/run/tailscale/tailscaled.sock", "--port=41641"}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: RAW-STDERR: ***
Apr 18 07:06:09 udmp2333 tailscaled[645386]: RAW-STDERR: *** Lines prefixed with RAW-STDERR below bypassed logtail and probably come from a previous run of the program
Apr 18 07:06:09 udmp2333 tailscaled[645386]: RAW-STDERR: ***
Apr 18 07:06:09 udmp2333 tailscaled[645386]: RAW-STDERR:
Apr 18 07:06:09 udmp2333 tailscaled[645386]: RAW-STDERR: network is unreachable\n"}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: LogID: 4fa038657983321a890074e071fbb242554a989ae17277d4ae57eb7cca485c66
Apr 18 07:06:09 udmp2333 tailscaled[645386]: logpolicy: using $STATE_DIRECTORY, "/var/lib/tailscale"
Apr 18 07:06:09 udmp2333 dbus-daemon[671]: [system] Activating via systemd: service name='org.freedesktop.resolve1' unit='dbus-org.freedesktop.resolve1.service' requested by ':1.25' (uid=0 pid=645386 comm="/usr/sbin/tailscaled --state=/var/lib/tailscale/ta")
Apr 18 07:06:09 udmp2333 dbus-daemon[671]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.resolve1.service': Unit dbus-org.freedesktop.resolve1.service not found.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: [rc=unknown ret=direct]
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: using "direct" mode
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: using *dns.directManager
Apr 18 07:06:09 udmp2333 tailscaled[645386]: deleting [-j ts-input] in filter/INPUT: running [/usr/sbin/iptables -t filter -D INPUT -j ts-input --wait]: exit status 2: iptables v1.8.7 (legacy): Couldn't load target `ts-input':No such file or directory
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Try `iptables -h' or 'iptables --help' for more information.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: deleting [-j ts-forward] in filter/FORWARD: running [/usr/sbin/iptables -t filter -D FORWARD -j ts-forward --wait]: exit status 2: iptables v1.8.7 (legacy): Couldn't load target `ts-forward':No such file or directory
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Try `iptables -h' or 'iptables --help' for more information.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: deleting [-j ts-postrouting] in nat/POSTROUTING: running [/usr/sbin/iptables -t nat -D POSTROUTING -j ts-postrouting --wait]: exit status 2: iptables v1.8.7 (legacy): Couldn't load target `ts-postrouting':No such file or directory
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Try `iptables -h' or 'iptables --help' for more information.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: deleting [-j ts-input] in filter/INPUT: running [/usr/sbin/ip6tables -t filter -D INPUT -j ts-input --wait]: exit status 2: ip6tables v1.8.7 (legacy): Couldn't load target `ts-input':No such file or directory
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Try `ip6tables -h' or 'ip6tables --help' for more information.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: deleting [-j ts-forward] in filter/FORWARD: running [/usr/sbin/ip6tables -t filter -D FORWARD -j ts-forward --wait]: exit status 2: ip6tables v1.8.7 (legacy): Couldn't load target `ts-forward':No such file or directory
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Try `ip6tables -h' or 'ip6tables --help' for more information.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: [RATELIMIT] format("deleting %v in %s/%s: %v")
Apr 18 07:06:09 udmp2333 tailscaled[645386]: cleanup: list tables: netlink receive: invalid argument
Apr 18 07:06:09 udmp2333 tailscaled[645386]: wgengine.NewUserspaceEngine(tun "tailscale0") ...
Apr 18 07:06:09 udmp2333 systemd[1]: Started Tailscale node agent.
░░ Subject: A start job for unit tailscaled.service has finished successfully
░░ Defined-By: systemd
░░ Support: https://www.debian.org/support
░░ 
░░ A start job for unit tailscaled.service has finished successfully.
░░ 
░░ The job identifier is 3912.
Apr 18 07:06:09 udmp2333 tailscaled[645386]: setting link attributes: setsockopt: protocol not available
Apr 18 07:06:09 udmp2333 dbus-daemon[671]: [system] Activating via systemd: service name='org.freedesktop.resolve1' unit='dbus-org.freedesktop.resolve1.service' requested by ':1.25' (uid=0 pid=645386 comm="/usr/sbin/tailscaled --state=/var/lib/tailscale/ta")
Apr 18 07:06:09 udmp2333 dbus-daemon[671]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.resolve1.service': Unit dbus-org.freedesktop.resolve1.service not found.
Apr 18 07:06:09 udmp2333 networkd-dispatcher[690]: WARNING:Unknown index 29 seen, reloading interface list
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: [rc=unknown ret=direct]
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: using "direct" mode
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: using *dns.directManager
Apr 18 07:06:09 udmp2333 tailscaled[645386]: link state: interfaces.State{defaultRoute= ifs={br0:[192.168.17.70/24 llu6] eth8:[68.174.248.*/20 llu6] tun1:[192.168.30.17/32 llu6] tun2:[10.0.3.1/24 llu6]} v4=true v6=false}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: onPortUpdate(port=41641, network=udp6)
Apr 18 07:06:09 udmp2333 tailscaled[645386]: router: using firewall mode pref
Apr 18 07:06:09 udmp2333 tailscaled[645386]: router: default choosing iptables
Apr 18 07:06:09 udmp2333 tailscaled[645386]: router: v6 = true, v6filter = true, v6nat = true
Apr 18 07:06:09 udmp2333 tailscaled[645386]: onPortUpdate(port=41641, network=udp4)
Apr 18 07:06:09 udmp2333 tailscaled[645386]: magicsock: disco key = d:3d8ce7f92d1c3ed6
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Creating WireGuard device...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: external route: up
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Bringing WireGuard device up...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Bringing router up...
Apr 18 07:06:09 udmp2333 systemd-networkd[403]: tailscale0: Link UP
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Clearing router settings...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Starting network monitor...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Engine created.
Apr 18 07:06:09 udmp2333 systemd-networkd[403]: tailscale0: Gained carrier
Apr 18 07:06:09 udmp2333 systemd-networkd[403]: tailscale0: Gained IPv6LL
Apr 18 07:06:09 udmp2333 tailscaled[645386]: pm: using backend prefs for "profile-a976": Prefs{ra=true dns=true want=false routes=[0.0.0.0/0 ::/0 192.168.17.0/24] snat=true nf=on update=on Persist{lm=, o=, n=[Aj5af] u="*@*.net"}}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: envknob: PORT="41641"
Apr 18 07:06:09 udmp2333 tailscaled[645386]: logpolicy: using $STATE_DIRECTORY, "/var/lib/tailscale"
Apr 18 07:06:09 udmp2333 tailscaled[645386]: got LocalBackend in 56ms
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Start
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Backend: logs: be:4fa038657983321a890074e071fbb242554a989ae17277d4ae57eb7cca485c66 fe:
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: client.Login(false, 0)
Apr 18 07:06:09 udmp2333 tailscaled[645386]: health("overall"): error: state=Stopped, wantRunning=false
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: doLogin(regen=false, hasUrl=false)
Apr 18 07:06:09 udmp2333 tailscaled[645386]: Switching ipn state NoState -> Stopped (WantRunning=false, nm=false)
Apr 18 07:06:09 udmp2333 tailscaled[645386]: wgengine: Reconfig: configuring userspace WireGuard config (with 0/0 peers)
Apr 18 07:06:09 udmp2333 tailscaled[645386]: wgengine: Reconfig: configuring router
Apr 18 07:06:09 udmp2333 tailscaled[645386]: wgengine: Reconfig: configuring DNS
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: Set: {DefaultResolvers:[] Routes:{} SearchDomains:[] Hosts:0}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: Resolvercfg: {Routes:{} Hosts:0 LocalDomains:[]}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: dns: OScfg: {}
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: trying bootstrapDNS("derp10d.tailscale.com", "192.73.240.132") for "controlplane.tailscale.com" ...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: bootstrapDNS("derp10d.tailscale.com", "192.73.240.132") for "controlplane.tailscale.com" error: Get "https://derp10d.tailscale.com/bootstrap-dns?q=controlplane.tailscale.com": dial tcp 192.73.240.132:443: connect: network is unreachable
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: trying bootstrapDNS("derp4g.tailscale.com", "2a00:dd80:20::8f") for "controlplane.tailscale.com" ...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: bootstrapDNS("derp4g.tailscale.com", "2a00:dd80:20::8f") for "controlplane.tailscale.com" error: Get "https://derp4g.tailscale.com/bootstrap-dns?q=controlplane.tailscale.com": dial tcp [2a00:dd80:20::8f]:443: connect: network is unreachable
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: trying bootstrapDNS("derp5d.tailscale.com", "43.245.48.250") for "controlplane.tailscale.com" ...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: bootstrapDNS("derp5d.tailscale.com", "43.245.48.250") for "controlplane.tailscale.com" error: Get "https://derp5d.tailscale.com/bootstrap-dns?q=controlplane.tailscale.com": dial tcp 43.245.48.250:443: connect: network is unreachable
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: trying bootstrapDNS("derp21d.tailscale.com", "2607:f740:50::ca4") for "controlplane.tailscale.com" ...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: bootstrapDNS("derp21d.tailscale.com", "2607:f740:50::ca4") for "controlplane.tailscale.com" error: Get "https://derp21d.tailscale.com/bootstrap-dns?q=controlplane.tailscale.com": dial tcp [2607:f740:50::ca4]:443: connect: network is unreachable
Apr 18 07:06:09 udmp2333 tailscaled[645386]: control: trying bootstrapDNS("derp25b.tailscale.com", "102.67.167.245") for "controlplane.tailscale.com" ...
Apr 18 07:06:09 udmp2333 tailscaled[645386]: [RATELIMIT] format("control: trying bootstrapDNS(%q, %q) for %q ...")

ip route show table all  | grep -v local
default via 68.174.240.1 dev eth8 table 201.eth8 proto dhcp 
blackhole default table 251.blackhole proto PBR 
10.0.3.0/24 dev tun2 proto kernel scope link src 10.0.3.1 
68.174.240.0/20 dev eth8 proto kernel scope link src 68.174.248.* 
192.168.17.0/24 dev br0 proto kernel scope link src 192.168.17.70 
192.168.19.0/24 via 192.168.30.16 dev tun1 
192.168.30.16 dev tun1 proto kernel scope link src 192.168.30.17 

root@udmp2333:~# ip route get 176.58.93.154
176.58.93.154 via 68.174.240.1 dev eth8 table 201.eth8 src 68.174.248.36 uid 0 
    cache 

root@udmp2333:~# ip route get 2a00:dd80:3c::3d5
RTNETLINK answers: Network is unreachable