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#1 2020-02-28 17:26:19

Registered: 2020-01-09
Posts: 1

Network: Can't reach specific device (printer) from fresh arch install

I have an old laptop with a working arch installation and my wifi HP printer (OfficeJet) is working there. As I got a new laptop, I installed arch fresh, made a list of installed packages on the old one and installed them on the new one. Copied config files and stuff (nothing from /etc), almost everything is working on the new one now. When I tried to setup my printer, it wasn't working with the script I wrote for the old laptop and I started troubleshooting.Now I reached a point where I found out that I am not able to even ping the printer from the new laptop, but from the old and all other devices I can ping the printer.

I am using Pi-hole in my network with dnsmasq as DNS / DHCP Server and this works on all other devices. All the devices have static dhcp leases configured in pi-hole and dynamic on the devices itself.

What I checked so far:

- checked /etc/hosts -> is identical
- checked /etc/nsswitch.conf -> is identical
- checked /etc/resolv.conf -> is identical
- checked /etc/systemd/resolved.conf -> is identical
- pinged other devices -> working
- arp -a -> is identical
- route -n -> is identical
- /etc/hosts -> is identical

I masked the hostnames and IP addresses below. LAPTOP2 is the new one, HPF65422 is the printer.

IPv6 ping:

ping -6 HPF65422
PING HPF65422(HPF65422.rob (CORRECTIPV6ADDR)) 56 data bytes
From LAPTOP2 (CORRECTIPV6ADDR) icmp_seq=1 Destination unreachable: Address unreachable
From LAPTOP2 (CORRECTIPV6ADDR) icmp_seq=2 Destination unreachable: Address unreachable
From LAPTOP2 (CORRECTIPV6ADDR) icmp_seq=3 Destination unreachable: Address unreachable
--- HPF65422 ping statistics --- 6 packets transmitted, 0 received, +3 errors, 100% packet loss, time 5061ms

IPv4 ping:

ping -4 -c 3 HPF65422
PING HPF65422.rob ( 56(84) bytes of data.

--- HPF65422.rob ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2036ms

Tracepath (not leaving the maschine):

1?: [LOCALHOST]                      pmtu 1500
1:  no reply
2:  no reply
3:  no reply
4:  no reply
5:  no reply
6:  no reply

arp (correct route):

arp -a
HPF65422.rob ( at MACADDRESS [ether] on ens1u2u4


route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface         UG    100    0        0 ens1u2u4   U     100    0        0 ens1u2u4


# Name Service Switch configuration file.
# See nsswitch.conf(5) for details.
passwd: files mymachines systemd
group: files mymachines systemd
shadow: files
publickey: files
hosts: files mymachines myhostname resolve [!UNAVAIL=return] dns
networks: files
protocols: files
services: files
ethers: files
rpc: files
netgroup: files

/etc/resolv.conf (correct values):

# Generated by NetworkManager
search rob
# NOTE: the libc resolver may not support more than 3 nameservers.
# The nameservers listed below may not be recognized.


# Static table lookup for hostnames.
# See hosts(5) for details.   localhost
::1         localhost LAPTOP2


#  This file is part of systemd.
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
# Entries in this file show the compile time defaults.
# You can change settings by editing this file.
# Defaults can be restored by simply deleting this file.
# See resolved.conf(5) for details

#FallbackDNS= 2606:4700:4700::1111 2620:fe::10 2001:4860:4860::8888

What am I missing?

What really bothers me is that I just can't reach my printer from this maschine but from any other.


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