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Cloud0 doesn't work from outside world

Posted: Tue May 26, 2020 10:47 pm
by rebelnn
Hello, I have setup a Management(Cloud0) Network connected to two Cisco CSR routers of mine. I have assigned a routable IP address to both CSR's interface and they can reach each other plus both of them can reach the eve-ng host. However, when I want to ping outside of the eve-ng real to my PC for example I cannot. My hypervisor is vMware ESXI, interfaces are correctly setup in bridge mode see below: (Also have promicious mode enabled)

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root@eve-ng:~# brctl show
bridge name	bridge id		STP enabled	interfaces
pnet0		8000.000c2952c475	no		eth0
							vunl0_1_0
							vunl0_2_0
also here is my network interface config:

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# Cloud devices
iface eth1 inet manual
auto pnet1
iface pnet1 inet manual
    bridge_ports eth1
    bridge_stp off

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root@eve-ng:~# tcpdump dst 10.97.179.28
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
02:01:56.777634 ARP, Request who-has 10.97.179.28 tell xyz, length 46
I ran a tcpdump on the eve-ng box and I'm only seing ARP queries from it's gateway to the CSR's IP but the CSRs never respond back. Any idea what could I be missing?

Re: Cloud0 doesn't work from outside world

Posted: Wed May 27, 2020 1:04 pm
by rebelnn
Figured this out nothing EVE-NG related...the switch where the hypervisor was connected to had port-security configured and was limiting the number of MAC addresss learned on the switchport hence ARPs were failing.

Re: Cloud0 doesn't work from outside world

Posted: Wed May 27, 2020 1:25 pm
by Uldis (UD)
dont forget that Promiscue mode MUST be on in Esxi, on your vmnets !!!