Hey guys, on lesson 188 about network namespaces I'm getting the following when . . .

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#1

Timothy:
hey guys, on lesson 188 about network namespaces I’m getting the following when trying to ping the blue namespace from red:

$ sudo ip netns exec red ping 192.168.15.2
ping: connect: Network is unreachable

Thought I’d done everything right so far… anyone else had this error?

#2

Mohit chauhan:
$ ip -n red arp

#3

Mohit chauhan:
please share output

#4

Timothy:
@Mohit chauhan

$ sudo ip -n red arp
Object "arp" is unknown, try "ip help".
$ sudo ip netns exec red arp
$
#5

Vladimir Panian:
you need to confirm you have setup default gw and you are pinging from same network 192.168.15.x assuming your netmask is 255.255.255.0