VLAN problem on NSA 2600 - losing access to physical interface
I have a NSA 2600 that we use a backup firewall, and want to tunnel segregated Guest traffic from Unifi AP's to this firewall. I have setup a virtual interface on X0 (X0:V615), enabling DHCP server on this virtual interface (172.16.20.1).
When I connect my phone to the test Guest SSID, it gets an IP address on the V615 IP range (172.16.20.X), so communication to the firewall is working, however, we then lose access to the physical interface IP (10.0.0.2). We have to wait from a few hours to a week for the NSA to sort itself out. We have seen loads of ARP requests in the logs, and made the change to the diag settings to limit these to 100 per 60 secs, but it still drops the connection. Also the Data Plane is constant 99%.
The ping results are very sporadic and we can't access the firewall, e.g:
Reply from 10.0.0.2: bytes=32 time=4ms TTL=64
Request timed out.
Reply from 10.0.0.2: bytes=32 time=5ms TTL=64
Reply from 10.0.0.2: bytes=32 time=5ms TTL=64
Reply from 10.0.0.2: bytes=32 time=5ms TTL=64
Request timed out.
Reply from 10.0.0.2: bytes=32 time=3ms TTL=64
Request timed out.
Reply from 10.0.0.2: bytes=32 time=5ms TTL=64
Request timed out.
Request timed out.
Request timed out.
Reply from 10.0.0.2: bytes=32 time=5ms TTL=64
Has anybody experienced this before? Is it an issue on the Sonicwall?
Answers
A few items come to mind
I hope that this helps
Greg
Hi Greg,
STP is on the fabric switch (HPE 5130 in HA). I can ping the Sonicwall from the phone, and get an IP address from DHCP (which is on the Sonicwall for that VLAN), so connectivity (I don't think) is the issue. Multi-core monitor is showing that all 3 cores for Data Plane is at 99%. Firmware of this device is 6.5.3.3.
6.5.3.3 is quite old, the latest being 6.5.4.8, so get to upgrading!
What is the purpose of getting to the IP of the Sonicwall physical interface 10.0.0.2 from your GUEST VLAN? Did the symptoms exist prior to introduction of the VLAN?