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 ...
- 88.1k
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
...
- 2,426
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 ...
- 68.1k
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 ...
- 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 ...
- 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 ...
- 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 ...
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://...
- 16.4k
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 ...
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 ...
- 88.1k
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 ...
- 846
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 ...
- 68.1k
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 ...
- 88.1k
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 ...
- 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 ...
- 101k
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!)...
- 55
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 ...
- 5,605
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 ...
- 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.
- 121
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 ...
- 2,594
1
vote
EdgeRouter X select one out of two WANs according to target IP range
I want to direct packets to one out of two WAN connections according to an IP range. Here are my conditions.
You are doing this way too complicated. Routing by destination address/subnet simply ...
- 88.1k
1
vote
UniFi Network Controller WLAN channel display meaning
In the 2.4 GHz band, there are three non-overlapping bands for 802.11b/g/n from which you can choose for the 22/20 MHz bandwidth (the EE term, not the networking term). Those are channels 1, 6. and 11 ...
- 101k
1
vote
Tagging a VLAN or not
If you want guest traffic to be in its own broadcast domain, then yes, you need a new VLAN on your switches/AP. You will also need trunk-ports across your router and switches/APs. Trunk ports would ...
- 352
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
...
- 68.1k
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.
- 68.1k
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 ...
- 846
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 🤷♀️
- 11
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 ...
- 88.1k
Only top scored, non community-wiki answers of a minimum length are eligible