I'm seeing a similar issue with a BBAI.
However, on my host Ubuntu 18 system, I am seeing the network ports from
the BB in the routing table.
*$ sudo netstat -rn*
*Kernel IP routing table*
*Destination Gateway Genmask Flags MSS Window irtt
Iface*
*0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0
wlan0*
*169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0
wlan0*
*172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0
docker0*
*192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0
wlan0*
*192.168.6.0 0.0.0.0 255.255.255.0 U 0 0 0
usb0*
*192.168.7.0 0.0.0.0 255.255.255.0 U 0 0 0
eth1*
On the BB:
* # netstat -rn*
*Kernel IP routing tableDestination Gateway Genmask
Flags MSS Window irtt Iface0.0.0.0 192.168.7.1 0.0.0.0
UG 0 0 0 usb0192.168.6.0 0.0.0.0
255.255.255.0 U 0 0 0 usb1192.168.7.0 0.0.0.0
255.255.255.0 U 0 0 0 usb0192.168.8.0 0.0.0.0
255.255.255.0 U 0 0 0 SoftAp0*
Running tcpdump on my Ubuntu system, I can see where the incoming traffic
from the BB is reaching the correct IP on the host but does not seem to be
getting routed out.
On BB:
*# ping -I usb0 8.8.8.8*
On Host:
*$ sudo tcpdump -nvvi wlan0 'icmp[icmptype] == icmp-echo or icmp[icmptype]
== icmp-echoreply'*
*tcpdump: listening on wlan0, link-type EN10MB (Ethernet), capture size
262144 bytes*
*08:55:34.027628 IP (tos 0x0, ttl 115, id 44071, offset 0, flags [DF],
proto ICMP (1), length 84)*
* 192.168.2.216 > 8.8.8.8 <http://8.8.8.8>: ICMP echo request, id 1402,
seq 1, length 64*
*08:55:34.049037 IP (tos 0x20, ttl 52, id 0, offset 0, flags [none], proto
ICMP (1), length 84)*
* 8.8.8.8 > 192.168.2.216 <http://192.168.2.216>: ICMP echo reply, id
1402, seq 1, length 64*
*08:55:35.049654 IP (tos 0x0, ttl 115, id 44297, offset 0, flags [DF],
proto ICMP (1), length 84)*
* 192.168.2.216 > 8.8.8.8 <http://8.8.8.8>: ICMP echo request, id 1402,
seq 2, length 64*
*08:55:35.067301 IP (tos 0x20, ttl 52, id 0, offset 0, flags [none], proto
ICMP (1), length 84)*
It seems that something either on the Ubuntu side or in the network is
blocking the traffic.
Cheers,
Jon
On Sat, May 16, 2020 at 7:07 AM KenUnix <[email protected]> wrote:
>
> I too am having problems today. In your regard
>
> The following is my netstat -rn for my Ubuntu Linux host PC:
>
> Kernel IP routing table
> |||---
> Destination Gateway Genmask Flags MSS Window irtt
> Iface
> 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0
> wlp8s0
> 10.42.0.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth0
> 10.42.1.0 0.0.0.0 255.255.255.0 U 0 0 0
> eth1
> 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0
> eth0
> 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0
> wlp8s0 (wlp8s0 is my wifi)
>
> And my BBB routing table looks like
> |||---
> Destination Gateway Genmask Flags MSS Window irtt
> Iface
> 0.0.0.0 192.168.7.1 0.0.0.0 UG 0 0 0
> usb0
> 192.168.6.0 0.0.0.0 255.255.255.0 U 0 0 0
> usb1
> 192.168.7.0 0.0.0.0 255.255.255.0 U 0 0 0
> usb0
>
> The gateway address on BOTH sides of the connection should match
> with one side being .....1 and the other side being ....2 If they do not
> line up each side will not see the other side.
>
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