Cisco and Starlink

[pdenableetoavit19698]

Hi all,

I am setting up many Starlink antennas, and realizing that they have a fix IP address that is very often the same one of the gateway setup in the company.

I see many companies setting up dedicated network for the Starlink antenna and then migrating clients previously there to other networks.

Do you have any suggestions on how to better handle this and setup starlink on an existing network?

Thank you for any suggestions! and have a great day!

[pieterh · Accepted solution]

first I have no experience on Starlink equipment, but here some thoughts

>>>  realizing that they have a fix IP address that is very often the same one of the gateway setup in the company. <<<
1) it may be by design that Starlink chose for this IP-address/subnet , so you can switch the current gateway by a Starlink gateway without aditional network configuration changes.
2) you better search on a Starlink forum or Starlink documentation if and how to change the IP-address of the Starlink system ?

[micheli0 · Accepted solution]

Hey there,

It sounds like you're grappling with the IP address clash between Starlink antennas and your company's gateway setup. While I'm not an expert on Starlink equipment, here are a couple of thoughts that might help:

1. Since it seems like Starlink deliberately chose a fixed IP address/subnet, consider swapping out your current gateway with a Starlink gateway. This could potentially streamline your network setup without requiring additional configuration changes.

2. It might be worth exploring Starlink forums or documentation to see if there's a way to adjust the IP address of the Starlink system to better align with your existing network.

Here are some resources that I found and these may help you.
https://community.cisco.com/t5/routing/dmvpn-spoke-not-connecting-when-using-starlink/td-p/5068428
https://community.cisco.com/t5/routing/starlink-on-cisco-c921-4p/td-p/4705589= https://www.ecoauto.shop/collections/bullet-antenna
https://community.cisco.com/t5/routing/cisco-1841-and-starlink-need-help/td-p/4614683
https://community.cisco.com/t5/routing/cisco-897vag-lte-series-router-on-starlink/td-p/4745433

Hopefully, these suggestions point you in the right direction! Good luck with your setup, and have a fantastic day!

[bcerny]

I suspect that you're using the Starlink terminal with the little, white gravestone-shaped router/Wi-Fi/DHCP server/power brick with the LAN-side gateway IP address of 192.168.1.1 /24, yes? And 192.168.1.0 /24 overlaps the existing LAN IP address space?

If you're not happy with this, then put the Starlink terminal into 'Bypass Mode' and connect a router to the Starlink Ethernet adapter. Configure your router's WAN interface for DHCP, and it will pull a 5 minute lease from Starlink's cgNAT pool (10.64.0.0 /12). Or, you might want to try DHCPv6 with /56 prefix delegation, if that's a better fit for your requirements.