ping -I wlan0 - always give me `Destination Host Unreachable #1204

magnetux · 2022-08-06T03:17:41Z

magnetux
Aug 6, 2022

Raspberry Pi B2 + RaspAP 2.8.5

Note :

Even with all this problem client (my laptop) still can enjoy internet without problem, but the problem is Adguard unable to use upsream dns because it use name https://security.cloudflare-dns.com/dns-query and i must change to https://1.1.1.2/dns-query to make it work, and this is not because Adguard Home because this problem exist even before i'm installing Adguard Home.

Please help me so i can't ping and resolve dns name via wlan0, for detail information you can check below data, thank you.

Client Info (my laptop) :

# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye

# uname -rms
Linux 5.10.0-16-amd64 x86_64

# ifconfig wlan0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.3.141.246  netmask 255.255.255.0  broadcast 10.3.141.255
        inet6 fe80::a3de:fe9a:11cd:38d  prefixlen 64  scopeid 0x20<link>
        ether e0:b9:a5:2d:a7:66  txqueuelen 1000  (Ethernet)
        RX packets 257  bytes 39541 (38.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 269  bytes 40986 (40.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

# iwconfig 
wlan0     IEEE 802.11  ESSID:"Keong Imut"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 50:2B:73:D8:02:0C   
          Bit Rate=26 Mb/s   Tx-Power=15 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=60/70  Signal level=-50 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Gateway

# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.3.141.1      0.0.0.0         UG    600    0        0 wlan0
10.3.141.0      0.0.0.0         255.255.255.0   U     600    0        0 wlan0

Ping From Client to RaspAP BOX - i'm UNPLUG eth0 from laptop

# ping raspberrypi -c 3
PING raspberrypi (127.0.1.1) 56(84) bytes of data.
64 bytes from raspberrypi (127.0.1.1): icmp_seq=1 ttl=64 time=0.059 ms
64 bytes from raspberrypi (127.0.1.1): icmp_seq=2 ttl=64 time=0.080 ms
64 bytes from raspberrypi (127.0.1.1): icmp_seq=3 ttl=64 time=0.086 ms

--- raspberrypi ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 0.059/0.075/0.086/0.011 ms

# ping 10.3.141.1 -c 3
PING 10.3.141.1 (10.3.141.1) 56(84) bytes of data.
64 bytes from 10.3.141.1: icmp_seq=1 ttl=64 time=853 ms
64 bytes from 10.3.141.1: icmp_seq=2 ttl=64 time=297 ms
64 bytes from 10.3.141.1: icmp_seq=3 ttl=64 time=3.63 ms

--- 10.3.141.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 3.632/384.764/853.312/352.344 ms

Ping From Client to google.com - i'm UNPLUG eth0 from laptop

# ping google.com -c 3
PING google.com (172.217.194.101) 56(84) bytes of data.
64 bytes from si-in-f101.1e100.net (172.217.194.101): icmp_seq=1 ttl=56 time=109 ms
64 bytes from si-in-f101.1e100.net (172.217.194.101): icmp_seq=2 ttl=56 time=153 ms
64 bytes from si-in-f101.1e100.net (172.217.194.101): icmp_seq=3 ttl=56 time=200 ms

--- google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 108.765/153.803/199.861/37.196 ms

# ping 172.217.194.101 -c 3
PING 172.217.194.101 (172.217.194.101) 56(84) bytes of data.
64 bytes from 172.217.194.101: icmp_seq=1 ttl=56 time=774 ms
64 bytes from 172.217.194.101: icmp_seq=2 ttl=56 time=248 ms
64 bytes from 172.217.194.101: icmp_seq=3 ttl=56 time=201 ms

--- 172.217.194.101 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 201.310/407.825/773.854/259.531 ms

Raspberry 2B + RaspAP

RaspAP Hotspot Advanced settings :

Bridged AP mode off
WiFi client AP mode off
Hide SSID in broadcast off

Device Info

# lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye

# uname -rms
Linux 5.15.32-v7+ armv7l

Networking Info

# ifconfig wlan0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.3.141.1  netmask 255.255.255.0  broadcast 10.3.141.255
        ether 50:2b:73:d8:02:0c  txqueuelen 1000  (Ethernet)
        RX packets 80898  bytes 8546128 (8.1 MiB)
        RX errors 0  dropped 337  overruns 0  frame 0
        TX packets 63772  bytes 71227058 (67.9 MiB)
        TX errors 0  dropped 64 overruns 0  carrier 0  collisions 0

# iwconfig 
wlan0     IEEE 802.11bgn  ESSID:"Keong Imut"  Nickname:"<WIFI@REALTEK>"
          Mode:Master  Frequency:2.412 GHz  Access Point: 50:2B:73:D8:02:0C   
          Bit Rate:72.2 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=88/100  Signal level=45/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Gateway

# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.110.232 0.0.0.0         UG    202    0        0 eth0
0.0.0.0         10.3.141.1      0.0.0.0         UG    303    0        0 wlan0
10.3.141.0      0.0.0.0         255.255.255.0   U     303    0        0 wlan0
192.168.110.0   0.0.0.0         255.255.255.0   U     202    0        0 eth0

Iptables

# ufw
-bash: ufw: command not found

# iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
-A FORWARD -i eth0 -o wlan0 -m state --state RELATED,ESTABLISHED -j ACCEPT
-A FORWARD -i wlan0 -o eth0 -j ACCEPT

# iptables -L -v -n
Chain INPUT (policy ACCEPT 123K packets, 97M bytes)
 pkts bytes target     prot opt in     out     source               destination         

Chain FORWARD (policy ACCEPT 1 packets, 328 bytes)
 pkts bytes target     prot opt in     out     source               destination         
62823   69M ACCEPT     all  --  eth0   wlan0   0.0.0.0/0            0.0.0.0/0            state RELATED,ESTABLISHED
47567 5025K ACCEPT     all  --  wlan0  eth0    0.0.0.0/0            0.0.0.0/0           

Chain OUTPUT (policy ACCEPT 16374 packets, 4500K bytes)
 pkts bytes target     prot opt in     out     source               destination

Ping problem :

# ping -I eth0 google.com -c 3
PING google.com (142.251.10.139) from 192.168.110.40 eth0: 56(84) bytes of data.
64 bytes from sd-in-f139.1e100.net (142.251.10.139): icmp_seq=1 ttl=57 time=28.5 ms
64 bytes from sd-in-f139.1e100.net (142.251.10.139): icmp_seq=2 ttl=57 time=28.4 ms
64 bytes from sd-in-f139.1e100.net (142.251.10.139): icmp_seq=3 ttl=57 time=28.4 ms

--- google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 28.385/28.427/28.450/0.029 ms


# ping -I eth0 142.251.10.101 -c 3
PING 142.251.10.101 (142.251.10.101) from 192.168.110.40 eth0: 56(84) bytes of data.
64 bytes from 142.251.10.101: icmp_seq=1 ttl=57 time=28.1 ms
64 bytes from 142.251.10.101: icmp_seq=2 ttl=57 time=28.0 ms
64 bytes from 142.251.10.101: icmp_seq=3 ttl=57 time=28.4 ms

--- 142.251.10.101 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 28.035/28.173/28.377/0.146 ms

Ping from INSIDE Raspberry BOX using wlan0 always `Destination Host Unreachable`

# ping -I wlan0 google.com -c 3
PING google.com (142.251.10.113) from 10.3.141.1 wlan0: 56(84) bytes of data.
From 10.3.141.1 (10.3.141.1) icmp_seq=1 Destination Host Unreachable
From 10.3.141.1 (10.3.141.1) icmp_seq=2 Destination Host Unreachable
From 10.3.141.1 (10.3.141.1) icmp_seq=3 Destination Host Unreachable

--- google.com ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2076ms
pipe 3

# ping -I wlan0 142.251.10.101 -c 3
PING 142.251.10.101 (142.251.10.101) from 10.3.141.1 wlan0: 56(84) bytes of data.
From 10.3.141.1 icmp_seq=1 Destination Host Unreachable
From 10.3.141.1 icmp_seq=2 Destination Host Unreachable
From 10.3.141.1 icmp_seq=3 Destination Host Unreachable

--- 142.251.10.101 ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2065ms
pipe 3

Ping from INSIDE raspberry BOX using wlan0 to eth0 also not possible `Destination Host Unreachable`

# ping -I wlan0 192.168.110.40 -c 3
PING 192.168.110.40 (192.168.110.40) from 10.3.141.1 wlan0: 56(84) bytes of data.
From 10.3.141.1 icmp_seq=1 Destination Host Unreachable
From 10.3.141.1 icmp_seq=2 Destination Host Unreachable
From 10.3.141.1 icmp_seq=3 Destination Host Unreachable

--- 192.168.110.40 ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2045ms
pipe 3

Ping to Raspberry Pi 2B Box FROM Client (LAPTOP)

# ping -I wlan0 10.3.141.1 -c 3
PING 10.3.141.1 (10.3.141.1) from 10.3.141.246 wlan0: 56(84) bytes of data.
64 bytes from 10.3.141.1: icmp_seq=1 ttl=64 time=3.73 ms
64 bytes from 10.3.141.1: icmp_seq=2 ttl=64 time=3.73 ms
64 bytes from 10.3.141.1: icmp_seq=3 ttl=64 time=3.66 ms

--- 10.3.141.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 3.662/3.708/3.734/0.032 ms

# ping -I wlan0 raspberrypi -c 3
ping: raspberrypi: Name or service not known

Service status

# systemctl status dnsmasq.service
● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
     Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2022-08-06 02:57:00 BST; 1h 12min ago
    Process: 1738 ExecStartPre=/etc/init.d/dnsmasq checkconfig (code=exited, status=0/SUCCESS)
    Process: 1745 ExecStart=/etc/init.d/dnsmasq systemd-exec (code=exited, status=0/SUCCESS)
    Process: 1753 ExecStartPost=/etc/init.d/dnsmasq systemd-start-resolvconf (code=exited, status=0/SUCCESS)
   Main PID: 1752 (dnsmasq)
      Tasks: 1 (limit: 1598)
        CPU: 1.012s
     CGroup: /system.slice/dnsmasq.service
             └─1752 /usr/sbin/dnsmasq -x /run/dnsmasq/dnsmasq.pid -u dnsmasq -r /run/dnsmasq/resolv.conf -7 /etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg>

Aug 06 02:56:59 raspberrypi systemd[1]: Starting dnsmasq - A lightweight DHCP and caching DNS server...
Aug 06 02:57:00 raspberrypi systemd[1]: Started dnsmasq - A lightweight DHCP and caching DNS server.


# systemctl status hostapd.service
● hostapd.service - Access point and authentication server for Wi-Fi and Ethernet
     Loaded: loaded (/lib/systemd/system/hostapd.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2022-08-06 01:26:31 BST; 2h 44min ago
       Docs: man:hostapd(8)
   Main PID: 834 (hostapd)
      Tasks: 1 (limit: 1598)
        CPU: 907ms
     CGroup: /system.slice/hostapd.service
             └─834 /usr/sbin/hostapd -B -P /run/hostapd.pid -B /etc/hostapd/hostapd.conf

Aug 06 04:07:35 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 WPA: pairwise key handshake completed (RSN)
Aug 06 04:07:57 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 IEEE 802.11: disassociated
Aug 06 04:08:30 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 IEEE 802.11: associated
Aug 06 04:08:30 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 RADIUS: starting accounting session 62DEFB4AF9C67D3B
Aug 06 04:08:30 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 WPA: pairwise key handshake completed (RSN)
Aug 06 04:09:20 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 IEEE 802.11: disassociated
Aug 06 04:09:53 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 IEEE 802.11: associated
Aug 06 04:09:53 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 RADIUS: starting accounting session D141E2053307285A
Aug 06 04:09:53 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 WPA: pairwise key handshake completed (RSN)
Aug 06 04:10:09 raspberrypi hostapd[834]: wlan0: STA e0:b9:a5:2d:a7:66 IEEE 802.11: disassociated


# systemctl status raspapd.service
● raspapd.service - RaspAP Service Daemon
     Loaded: loaded (/lib/systemd/system/raspapd.service; enabled; vendor preset: enabled)
     Active: inactive (dead) since Sat 2022-08-06 01:26:38 BST; 2h 44min ago
   Main PID: 704 (code=exited, status=0/SUCCESS)
        CPU: 417ms

Aug 06 01:26:27 raspberrypi systemd[1]: Starting RaspAP Service Daemon...
Aug 06 01:26:28 raspberrypi bash[704]: Stopping network services...
Aug 06 01:26:29 raspberrypi bash[704]: Changing RaspAP Daemon --interface to uap0
Aug 06 01:26:29 raspberrypi bash[704]: Disabling systemd-networkd
Aug 06 01:26:30 raspberrypi bash[704]: Starting network services...
Aug 06 01:26:38 raspberrypi bash[704]: RaspAP service start DONE
Aug 06 01:26:38 raspberrypi systemd[1]: raspapd.service: Succeeded.
Aug 06 01:26:38 raspberrypi systemd[1]: Finished RaspAP Service Daemon.

Is that normal for `systemctl status raspapd.service` Results `Active: inactive (dead)`

i cant still accessing raspap web interface even with raspapd status inactive.

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magnetux Aug 6, 2022

Raspberry Pi B2 + RaspAP 2.8.5

Client Info (my laptop) :

Raspberry 2B + RaspAP

Ping from INSIDE Raspberry BOX using wlan0 always Destination Host Unreachable

Ping from INSIDE raspberry BOX using wlan0 to eth0 also not possible Destination Host Unreachable

Ping to Raspberry Pi 2B Box FROM Client (LAPTOP)

Service status

Is that normal for systemctl status raspapd.service Results Active: inactive (dead)

Replies: 0 comments

magnetux
Aug 6, 2022

Ping from INSIDE Raspberry BOX using wlan0 always `Destination Host Unreachable`

Ping from INSIDE raspberry BOX using wlan0 to eth0 also not possible `Destination Host Unreachable`

Is that normal for `systemctl status raspapd.service` Results `Active: inactive (dead)`