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5 votes
Accepted

Unable to disable CRC check on Cisco 2960-X

The giveaway is the port name Gi1/0/50. An SFP+ DAC generally requires an SFP+ (10G) port. There are very few SFP ports (1G) that accept SFP+ modules. There are no SFP DACs, so you could use either a ...
Zac67's user avatar
  • 84.8k
4 votes
Accepted

Question about Ubiquiti Edgemax switch syntax and VLANs

To configure what Cisco calls an access port, set the desired VLAN untagged on that port. For example, to have port 3 as an access port on VLAN 100, set VLAN 100 to untagged on port 3. To create a ...
Ron Trunk's user avatar
  • 67.6k
4 votes

Re-tagging identically tagged VLANs

Some Cisco switches support "vlan mapping". You'd do this (for your example): Switch(config)#int <wan-1> Switch(config-if)#switchport mode trunk Switch(config-if)#switchport vlan mapping X A ...
mere3ortal's user avatar
  • 2,416
3 votes
Accepted

In a site-to-site VPN, can a computer on site A use the gateway on site B?

In other words, I want all (or optionally, some) hosts in site B to reach the internet via site A's ISP. How would I approach this? Normally, we build up a VPN tunnel between two sites so that ...
Hung Tran's user avatar
  • 3,754
3 votes

Can I backup config of an EdgeRouter Lite 3 to an EdgeRouter 4?

Unfortunately, your question is not fully allowed here due to the device manufacturer (Ubiquiti) not offering any sort of paid support option. However, as a generic/brand-agnostic question, if you can ...
Jesse P.'s user avatar
  • 4,690
2 votes

Ubiquiti UniFi Wireless bridging over two floors

You can set up most (recent) Unify APs to act as clients now via their Wireless Uplink feature. The linked article walks through how to do it, and the supported hardware. I have done it with an old ...
brianm's user avatar
  • 121
2 votes

Ubiquiti UniFi Wireless bridging over two floors

If your desired physical layer diagram is: Router <-wire-> Device <-radio-> Device <-wire-> PC Then you're looking for transparent bridging. The appropriate inexpensive Ubiquiti devices for ...
Anti-weakpasswords's user avatar
2 votes

Cisco Small Business SG300-10P and Ubiquiti Wireless APs, is is possible to enable IP Source Guard?

Ran into a similar issue with Cisco WS-3850 switches connected to both Aruba and Aerohive systems. Wireless stations roamed between WAPs ( and because the director of IT didn't believe in site ...
Stuart Smith's user avatar
2 votes

UniFi Switch US 8-60w with a UniFi AP-AC-LR

The access point UniFi AP-AC-LR uses 803.3/af mode A, and the switch US 8-60w supports it (according to their datasheets). Ubiquiti publishes its compatibility matrix confirming this, here: https://...
jonathanjo's user avatar
  • 16.3k
2 votes

How do I setup ubiquiti Nanostation M5?

If the NanoStations are set up to be a point to point bridge, they won't also act as wireless access points. You'll need to connect the ethernet port on one of the devices to your network. Note ...
Michael Donnelly's user avatar
2 votes
Accepted

Device on VLAN is accessible from VPN but not from LAN

"LAN workstation" is in the 192.168.213.0/24 subnet - the same subnet you're using for "BAY x LAN". That is a very bad design. Unless you are using destination NAT and source NAT between those ...
Zac67's user avatar
  • 84.8k
2 votes

VPN Traffic Routing on Ubiquiti/Vyatta

Normally, routing is based on a packet's destination address. Some routers feature policy-based routing which you could use to route by application protocol, e.g. HTTP/S. However, you cannot route ...
Zac67's user avatar
  • 84.8k
2 votes

EdgeRouterX not routing traffic

Please check configuration in edge router onces again . Configurations like interface configuration, routing ,ssh configuration ,Nating , make sure edge router egress interface connected to modem and ...
Sagar Uragonda's user avatar
2 votes

What exactly is "network automation"?

If that's the case then since Ubiquiti has Unifi Controller is that already a network automation? Essentially, yes. You could also consider it a form of Software Defined Networking (SDN). If yes ...
Ron Trunk's user avatar
  • 67.6k
2 votes

How to save authorization infos on UniFi Network Controller?

The unifi network controller changes the SSH credentials after adoption for security reasons. You can change/find the current SSH credentials / SSH keys in *classic mode* (Advanced features enabled!)...
metrotyranno's user avatar
2 votes
Accepted

Tagging a VLAN or not

Are you managing the APs manually or are they managed by a central controller? If they're managed with a controller (like a UniFi Controller), your switch ports only need to be configured with ...
Jesse P.'s user avatar
  • 4,690
2 votes
Accepted

Static IPv6 Route on Ubiquiti EdgeRouter for my own /64

Ok, so I've read in some places that a /64 is akin to a single LAN in IPv4 networking. There are reasons to only use /64 IPv6 networks (/127 for point-to-point and /128 for loopback are the ...
Ron Maupin's user avatar
  • 99.8k
2 votes

Backup Ubiquiti Router in VRRP on WAN keeps taking over as master

VRRP PDUs use IP protocol 112 as described in RFC 5798 §5.1.1.4. Are there additional firewall flows I have to setup on either of the routers in order to allow vrrp communication to work (i.e. do I ...
Jeff Wheeler's user avatar
  • 5,468
2 votes
Accepted

Can I backup config of an EdgeRouter Lite 3 to an EdgeRouter 4?

There is no problem migrating from an ERL3 to an ER4 because interfaces names between these routers are the same. After migration, we have to manually create the interface eth3 (because eth3 doesn't ...
Loraga's user avatar
  • 41
2 votes

Dell PowerConnect 5548P no power to Ubiquiti ER-X

I'm dumb and didn't think of the voltage coming from the switch. An adapter is needed to transform 48V from switch to 24V.
tripleblep's user avatar
2 votes

Sanity Check: Changing MTU on Wifi Endpoints (computers) should be a LAST resort, right?

It's impossible to comment specifically without knowing the specific equipment and connections and configuration in use in the network in question. The mention of MTU 1492 indicates likely use of ...
FrameHowitzer's user avatar
1 vote

Is site-to-site with Ubiquiti UDM Pro + USG + ERPro-8 behind ISP routers possible?

It's possible, but first you need static IP addresses. You can ask your ISPs to give you static addresses (for a fee, of course). The most uncertain thing to me is whether I can use the UDM's UniFi ...
Ron Trunk's user avatar
  • 67.6k
1 vote

What exactly is "network automation"?

Network automation is word we are frequently hearing nowadays, and companies are even looking forward to automating their network infrastructure operation. For example, big organizations like banks ...
Sagar Uragonda's user avatar
1 vote
Accepted

Guest Network (VLAN/Subnet)

You do not need vlans in this situation. Just create the firewall rules to block 192.168.15.0/24, and allow everything else.
Ron Trunk's user avatar
  • 67.6k
1 vote

UniFi CloudKey controller gen1 gui on port 443 won't accept username and password

The password for the controller and the CloudKey management page, can be different. But I had the same problem and found no other way to solve it, than the Factory reset 🤷‍♀️
user3903134's user avatar
1 vote
Accepted

BNT Layer2/3 Switch & Cisco SG200 VLAN

You're tagging VLAN 4000 on SG200-08#2/g8 but you're not tagging on BNT/EXT1 - that can't work. Either you tag on both sides in the same way or you don't tag. You need to enable tagging and allow ...
Zac67's user avatar
  • 84.8k
1 vote

Re-tagging identically tagged VLANs

When you merge two networks using the same VLAN tags you may want to keep them separate. There are several approaches, depending on the hardware capabilities: using Q-in-Q tagging you can use inner ...
Zac67's user avatar
  • 84.8k
1 vote

How do I fix my vlans connection to the Internet?

I don't have much experience with ubiquiti switches but normally you wouldn't add static routes for networks that are directly connected interfaces. What I think you are looking for is a default route ...
josh13564's user avatar
  • 326

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