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* Error - mac address of the ping destination could not be resolved and is not a bat-host name
@ 2023-06-08 20:38 mark.mundy
  2023-06-09 12:10 ` Sven Eckelmann
  0 siblings, 1 reply; 5+ messages in thread
From: mark.mundy @ 2023-06-08 20:38 UTC (permalink / raw)
  To: b.a.t.m.a.n

What is the best way to figure out why 2 nodes that are connected on a WMN can see each other through 'batctl n', but 'batman ping' fails with the message "Error - mac address of the ping destination could not be resolved and is not a bat-host name"?

Node at eth1 - 10.1.1.1, wlan0 mac ether 04:f0:21:59:38:c9
root@jammy-newport:~# batctl n
[B.A.T.M.A.N. adv 2021.3, MainIF/MAC: wlan0/04:f0:21:59:38:c9 (bat0/72:85:90:2a:95:06 BATMAN_IV)]
IF             Neighbor              last-seen
        wlan0     c4:4b:d1:90:02:90    0.500s
root@jammy-newport:~# batctl ping 10.2.1.1
Error - mac address of the ping destination could not be resolved and is not a bat-host name: 10.2.1.1


Node at eth1 - 10.2.1.1, wlan0 mac ether c4:4b:d1:90:02:90
root@focal-newport:~# batctl n
[B.A.T.M.A.N. adv 2021.3, MainIF/MAC: wlan0/c4:4b:d1:90:02:90 (bat0/6e:87:15:7e:f3:14 BATMAN_IV)]
IF             Neighbor              last-seen
        wlan0     04:f0:21:59:38:c9    0.708s
root@focal-newport:~# batctl ping 10.1.1.1
Error - mac address of the ping destination could not be resolved and is not a bat-host name: 10.1.1.1

My intention is to be able to reach a computer on the far side of the WMN connected to eth1 10.2.1.1 from my host computer connected to the same network on eth1 10.1.1.1. It should look something like this.
network -> eth1 10.1.1.1 -> wlan0 -> bat0 (inet 10.1.1.4) -> BATMAN -> bat0 (inet 10.2.1.4) -> wlan0 -> eth1 10.2.1.1 -> non-BATMAN computer

My intention is to have eth1 10.1.1.1 connected to the main network as an interface for bat0 able to communicate over bat0. On the other end, eth1 10.2.1.1 The interfaces for eth1 and wlan0 show as active for both computers. 

For completeness, I'm working in Ubuntu 20.04
/etc/network/interfaces for 10.1.1.1
source-directory /etc/network/interfaces.d

allow-hotplug eth0
auto eth0
iface eth0 inet dhcp

allow hotplug eth1
auto eth1
iface eth1 inet static
        address 10.1.1.1
        netmask 255.0.0.0
        gateway 10.0.0.1
#        dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4

allow hotplug bat0
auto bat0
iface bat0 inet static
        address 10.1.1.4
        netmask 255.0.0.0
        up ip link set up dev $IFACE
        pre-up ip link set up dev wlan0
        pre-up iw dev wlan0 del
        pre-up iw phy phy0 interface add wlan0 type mesh
        pre-up iw dev wlan0 set channel 149 80MHz
        pre-up ip link set up dev wlan0
        pre-up iw dev wlan0 mesh join mesh149
        pre-up batctl if add wlan0
        pre-up batctl if add eth1
        down ip link set down dev $IFACE
        batman-adv-bridge yes
        batman-adv-mesh-id bat0
        batman-adv-multicast-mode 1
        batman-adv-ttl 50
        batman-adv-originator-ttl 50
        batman-adv-gateway-mode server
        batman-adv-hard-interface wlan0
        batman-adv-hard-interface eth1


ifconfig output:
bat0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.1.1.4  netmask 255.0.0.0  broadcast 10.255.255.255
        inet6 fe80::7085:90ff:fe2a:9506  prefixlen 64  scopeid 0x20<link>
        ether 72:85:90:2a:95:06  txqueuelen 1000  (Ethernet)
        RX packets 299  bytes 12606 (12.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1  bytes 90 (90.0 B)
        TX errors 0  dropped 14 overruns 0  carrier 0  collisions 0

eth0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:d0:12:21:f7:d6  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.1.1.1  netmask 255.0.0.0  broadcast 10.255.255.255
        inet6 fe80::2d0:12ff:fe21:f7d7  prefixlen 64  scopeid 0x20<link>
        ether 00:d0:12:21:f7:d7  txqueuelen 1000  (Ethernet)
        RX packets 4556  bytes 328215 (328.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 7817  bytes 486324 (486.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 25  bytes 1425 (1.4 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 25  bytes 1425 (1.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::6f0:21ff:fe59:38c9  prefixlen 64  scopeid 0x20<link>
        ether 04:f0:21:59:38:c9  txqueuelen 1000  (Ethernet)
        RX packets 5822  bytes 353632 (353.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6119  bytes 532058 (532.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


/etc/network/interfaces for 10.2.1.1
source-directory /etc/network/interfaces.d

allow-hotplug eth0
auto eth0
iface eth0 inet dhcp

allow hotplug eth1
auto eth1
iface eth1 inet static
        address 10.2.1.1
        netmask 255.0.0.0
        gateway 10.0.0.1
#        dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4

allow hotplug bat0
auto bat0
iface bat0 inet static
        address 10.2.1.4
        netmask 255.0.0.0
        up ip link set up dev $IFACE
        pre-up ip link set up dev wlan0
        pre-up iw dev wlan0 del
        pre-up iw phy phy0 interface add wlan0 type mesh
        pre-up iw dev wlan0 set channel 149 80MHz
        pre-up ip link set up dev wlan0
        pre-up iw dev wlan0 mesh join mesh149
        pre-up batctl if add wlan0
        pre-up batctl if add eth1
        down ip link set down dev $IFACE
        batman-adv-bridge yes
        batman-adv-mesh-id bat0
        batman-adv-multicast-mode 1
        batman-adv-ttl 50
        batman-adv-originator-ttl 50
        batman-adv-gateway-mode server
        batman-adv-hard-interface wlan0
        batman-adv-hard-interface eth1

ifconfig output:
bat0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.2.1.4  netmask 255.0.0.0  broadcast 10.255.255.255
        inet6 fe80::6c87:15ff:fe7e:f314  prefixlen 64  scopeid 0x20<link>
        ether 6e:87:15:7e:f3:14  txqueuelen 1000  (Ethernet)
        RX packets 42  bytes 1764 (1.7 KB)
        RX errors 0  dropped 5  overruns 0  frame 0
        TX packets 2  bytes 180 (180.0 B)
        TX errors 0  dropped 19 overruns 0  carrier 0  collisions 0

eth0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:d0:12:93:f7:83  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.2.1.1  netmask 255.0.0.0  broadcast 10.255.255.255
        inet6 fe80::2d0:12ff:fe93:f784  prefixlen 64  scopeid 0x20<link>
        ether 00:d0:12:93:f7:84  txqueuelen 1000  (Ethernet)
        RX packets 74  bytes 4826 (4.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 796  bytes 49010 (49.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 354  bytes 27080 (27.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 354  bytes 27080 (27.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::c64b:d1ff:fe90:290  prefixlen 64  scopeid 0x20<link>
        ether c4:4b:d1:90:02:90  txqueuelen 1000  (Ethernet)
        RX packets 508  bytes 33612 (33.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 528  bytes 48806 (48.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Error - mac address of the ping destination could not be resolved and is not a bat-host name
  2023-06-08 20:38 Error - mac address of the ping destination could not be resolved and is not a bat-host name mark.mundy
@ 2023-06-09 12:10 ` Sven Eckelmann
  2023-06-09 18:55   ` Mark Mundy
  0 siblings, 1 reply; 5+ messages in thread
From: Sven Eckelmann @ 2023-06-09 12:10 UTC (permalink / raw)
  To: b.a.t.m.a.n; +Cc: mark.mundy

[-- Attachment #1: Type: text/plain, Size: 2872 bytes --]

On Thursday, 8 June 2023 22:38:23 CEST mark.mundy@draeger.com wrote:
> What is the best way to figure out why 2 nodes that are connected on a WMN can see each other through 'batctl n', but 'batman ping' fails with the message "Error - mac address of the ping destination could not be resolved and is not a bat-host name"?

Please use either the actual mac address of the remote or the IP which is 
configured on the bat0 (which is also reachable directly by your host). 
batman-adv is not the IP subsystem and will therefore not be able to resolve 
any non-direct neighbors (over bat0).

> Node at eth1 - 10.1.1.1, wlan0 mac ether 04:f0:21:59:38:c9
> root@jammy-newport:~# batctl n
> [B.A.T.M.A.N. adv 2021.3, MainIF/MAC: wlan0/04:f0:21:59:38:c9 (bat0/72:85:90:2a:95:06 BATMAN_IV)]
> IF             Neighbor              last-seen
>         wlan0     c4:4b:d1:90:02:90    0.500s
> root@jammy-newport:~# batctl ping 10.2.1.1
> Error - mac address of the ping destination could not be resolved and is not a bat-host name: 10.2.1.1
> 
> 
> Node at eth1 - 10.2.1.1, wlan0 mac ether c4:4b:d1:90:02:90
> root@focal-newport:~# batctl n
> [B.A.T.M.A.N. adv 2021.3, MainIF/MAC: wlan0/c4:4b:d1:90:02:90 (bat0/6e:87:15:7e:f3:14 BATMAN_IV)]
> IF             Neighbor              last-seen
>         wlan0     04:f0:21:59:38:c9    0.708s
> root@focal-newport:~# batctl ping 10.1.1.1
> Error - mac address of the ping destination could not be resolved and is not a bat-host name: 10.1.1.1
> 
> My intention is to be able to reach a computer on the far side of the WMN connected to eth1 10.2.1.1 from my host computer connected to the same network on eth1 10.1.1.1. It should look something like this.
> network -> eth1 10.1.1.1 -> wlan0 -> bat0 (inet 10.1.1.4) -> BATMAN -> bat0 (inet 10.2.1.4) -> wlan0 -> eth1 10.2.1.1 -> non-BATMAN computer
> 
> My intention is to have eth1 10.1.1.1 connected to the main network as an interface for bat0 able to communicate over bat0. On the other end, eth1 10.2.1.1 The interfaces for eth1 and wlan0 show as active for both computers. 

Reach how? With IP routing? It is not the task of batman-adv to perform IP 
routing (it is on the wrong layer).


On Thursday, 8 June 2023 22:38:23 CEST mark.mundy@draeger.com wrote:
> allow hotplug eth1
> auto eth1
> iface eth1 inet static
>         address 10.1.1.1
>         netmask 255.0.0.0
>         gateway 10.0.0.1
> #        dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4
> 
> allow hotplug bat0
> auto bat0
> iface bat0 inet static
>         address 10.1.1.4
>         netmask 255.0.0.0

The IP configuration is weird. You have two IP addresses (bat0+ethX) which are 
overlapping (10.0.0.0/8). This cannot work.

If it should be a transparent bridge between mesh without IP routing then 
please add bat0+eth1 in the same bridge. And then configure the IP address on 
top of the bridge.

Kind regards,
	Sven

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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Error - mac address of the ping destination could not be resolved and is not a bat-host name
  2023-06-09 12:10 ` Sven Eckelmann
@ 2023-06-09 18:55   ` Mark Mundy
  2023-06-10 10:09     ` Sven Eckelmann
  0 siblings, 1 reply; 5+ messages in thread
From: Mark Mundy @ 2023-06-09 18:55 UTC (permalink / raw)
  To: b.a.t.m.a.n

Thanks for your reply, Sven. Comments inline below

Sven Eckelmann wrote:
> On Thursday, 8 June 2023 22:38:23 CEST mark.mundy@draeger.com wrote:

If I read your message correctly, the bridging of interfaces may make my original question moot. If I am wrong about that, I will go back to your original answer. 

> If it should be a transparent bridge between mesh without IP routing then 
> please add bat0+eth1 in the same bridge. And then configure the IP address on 
> top of the bridge.

I think I understand this to mean that I should remove the ipaddress, netmask configuration items from the bat0 interface, and create a bridge with bat0 and eth1. Something more like this for 10.1.1.1, and similar changes for 10.2.1.1 where it is actually the bridge interface that contains holds the IP address info

# new configuration file 
# /etc/network/interfaces for 10.1.1.1
#
source-directory /etc/network/interfaces.d

allow-hotplug eth0
auto eth0
iface eth0 inet dhcp

allow hotplug eth1
auto eth1
iface eth1 inet static
        address 10.1.1.1
        netmask 255.0.0.0
        gateway 10.0.0.1
#        dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4

allow hotplug bat0
auto bat0
iface bat0 inet manual          <-- changed from static
#        address 10.2.1.4
#        netmask 255.0.0.0
        up ip link set up dev $IFACE
        pre-up ip link set up dev wlan0
        pre-up iw dev wlan0 del
        pre-up iw phy phy0 interface add wlan0 type mesh
        pre-up iw dev wlan0 set channel 149 80MHz
        pre-up ip link set up dev wlan0
        pre-up iw dev wlan0 mesh join mesh149
        pre-up batctl if add wlan0
        pre-up batctl if add eth1
        down ip link set down dev $IFACE
        batman-adv-bridge yes
        batman-adv-mesh-id bat0
        batman-adv-multicast-mode 1
        batman-adv-ttl 50
        batman-adv-originator-ttl 50
        batman-adv-gateway-mode server
        batman-adv-hard-interface wlan0
        batman-adv-hard-interface eth1

allow hotplug br0
auto br0
iface br0 inet static
        address 10.2.1.4
        netmask 255.0.0.0
        bridge_ports eth1 bat0



> Kind regards,
>     Sven

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Error - mac address of the ping destination could not be resolved and is not a bat-host name
  2023-06-09 18:55   ` Mark Mundy
@ 2023-06-10 10:09     ` Sven Eckelmann
  2023-06-29 16:13       ` Mark Mundy
  0 siblings, 1 reply; 5+ messages in thread
From: Sven Eckelmann @ 2023-06-10 10:09 UTC (permalink / raw)
  To: Mark Mundy; +Cc: b.a.t.m.a.n

[-- Attachment #1: Type: text/plain, Size: 1206 bytes --]

On Friday, 9 June 2023 20:55:24 CEST Mark Mundy wrote:
> I think I understand this to mean that I should remove the ipaddress, netmask configuration items from the bat0 interface, and create a bridge with bat0 and eth1. 

Nearly correct - the eth1 IP configuration must also be removed because you 
configured two conflicting IP addresses (with the same subnet and metric) and 
in this process broke the routing table. 

> Something more like this for 10.1.1.1, and similar changes for 10.2.1.1 where it is actually the bridge interface that contains holds the IP address info
[...]
> allow hotplug eth1
> auto eth1
> iface eth1 inet static
>         address 10.1.1.1
>         netmask 255.0.0.0
>         gateway 10.0.0.1
> #        dns-nameservers 1.1.1.1 8.8.8.8 8.8.4.4

Why do you configure an IP address on eth1? It is part of a bridge and the IP 
configuration must be on top of the bridge. But you already have an IP
address in the same subnet configured on br0. There are ways to still work 
around this configuration problem but it would be weird to not simply fix the 
configuration.

Btw. this has nothing to do with batman-adv but is just about basic (Linux)
networking.

Kind regards,
	Sven


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^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Error - mac address of the ping destination could not be resolved and is not a bat-host name
  2023-06-10 10:09     ` Sven Eckelmann
@ 2023-06-29 16:13       ` Mark Mundy
  0 siblings, 0 replies; 5+ messages in thread
From: Mark Mundy @ 2023-06-29 16:13 UTC (permalink / raw)
  To: b.a.t.m.a.n

Sven Eckelmann wrote:
> On Friday, 9 June 2023 20:55:24 CEST Mark Mundy wrote:
> Btw. this has nothing to do with batman-adv but is just about basic (Linux)
> networking.

I took this to heart and went back and checked everything again. Not too surprisingly, you were correct. But that's what you get for putting a Windows Developer onto a Linux box to do networking.

I finally resolved the networking issue and used a shell script to configure the batman after /etc/network/interfaces was fully completed. 

I will call this issue resolved, and start a new thread with my current issue. If anyone comes here as part of this discussion, look for my next post to see the current state of my configuration files. I know I hate it when people forget to post the actual answer.

Mark

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2023-06-29 16:24 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-06-08 20:38 Error - mac address of the ping destination could not be resolved and is not a bat-host name mark.mundy
2023-06-09 12:10 ` Sven Eckelmann
2023-06-09 18:55   ` Mark Mundy
2023-06-10 10:09     ` Sven Eckelmann
2023-06-29 16:13       ` Mark Mundy

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