Description: Learn about various ports, their source and destination to apply to Firewall rules for using TransactionLink.
Global Port Requirement
| Port(s) |
In or Out |
Service(s) or Protocol(s) | Source(s) | Destination(s) |
| 123 | Out | NTP | TransactionLink™ | ntp1.merchantlink.com (104.153.8.123) ntp2.merchantlink.com (104.153.12.123) |
| 53 | Out | TCP & UDP | TransactionLink™ |
poslynx.org (199.175.52.135) ddns1.merchantlink.com (104.153.8.153) ddns2.merchantlink.com (104.153.12.153) DNS Host if external DNS is utilized (i.e. 8.8.8.8) Note: Port used for DNS registration of the device. |
| 38275 | Out | TCP | TransactionLink™ |
file1.merchantlink.com (104.153.8.71) file2.merchantlink.com (104.153.12.71) Note: Used for TransactionLink Management. |
|
500 4500 |
Out | UDP/ESP | TransactionLink™ |
support1.merchantlink.com (104.153.8.154) support2.merchantlink.com (104.153.12.154) Note: Used to establish a VPN to Merchant Link Support Center for Level III support issues. VPN must be physically initiated from remote (merchant) location. |
|
443, 9284, 9285 |
Out | TCP | TransactionLink™ | tv1.merchantlink.com (104.153.8.184) tv1.merchantlink.com (104.153.12.184) tv2.merchantlink.com (104.153.8.185) tv2.merchantlink.com (104.153.12.185) |
| 443, 59080 | Out |
TCP (443) UDP (59080) |
TransactionLink™ |
nvu1.merchantlink.com (104.153.8.81, 104.153.12.81) nvu2.merchantlink.com (104.153.8.82, 104.153.12.82) nvu3.merchantlink.com (104.153.8.83, 104.153.12.83 nvu4.merchantlink.com (104.153.8.84, 104.153.12.84) Used for TransactionLink™ management |
PIN PAD Support
| Port(s) |
In or Out |
Service(s) or Protocol(s) | Source(s) | Destination(s) |
|
8081, 8082 |
Out | TCP | TransactionLink™ |
download.merchantlink.com (104.153.8.78) download.merchantlink.com (104.153.12.78) This port is used for distributing forms and firmware updates to PED devices. |
| 443, 2000 | Out | TCP | Equinox PIN Pad Devices |
Equinox Remote Key Injection (65.112.126.222) This port is used for downloading keys from Equinox |
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