I have been banging my head against a wall and wondering if someone knows anything about this.
I have a vlan 5 (172.16.5.0/24) and vlan 10 (10.1.1.0/24) On my router (Sonicwall firewall) i have access rules to allow vlan 5 to access anything on vlan 10. However, one host, 10.1.1.112 I cannot ping, ssh, etc... No protocol that the server is listening on will respond. It's a vmware vhost and other things on the same vhost and vlan I can access in the same way. If I move my same computer to vlan 10 I can access the server no problem.
I did wireshark from vlan 5, and the packets had no response (not sure where the fault lands, router, switch, vhost, or server) I also did a tcpdump on the server and never saw my pings and other attempts. (Also disabled the firewall temporarily as a test)
Does anyone know where to start with this? Can the vhost do a tcpdump or is there something simple I am missing in routing?
TL;DR Windows 10 Client on Vlan 5 -> extreme switch (vlan 5) -> sonicwall NSA firewall -> same extreme switch (vlan 10) -> vhost (Esxi 6.7 U1) -> oracle linux vhost. At some point the link is breaking for only 1 host on vlan 10. Same windows 10 client on vlan 10 to the server works fine.
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