topic Re: Admin access to Spark 1555 in Spark Firewall (SMB)

Admin access to Spark 1555

StevePearson — Tue, 20 May 2025 13:54:00 GMT

These devices allow you to lock down admin access via the internet to specific IP addresses. The problem is, my IP address is DHCP from the ISP, so can change occasionally. In the security policy I have used a domain object pointing to my domain so the name is resolved from DNS, which is kept up to date automatically by a little docker container, which all works fine. However, the admin access only allows you to add IP addresses, not names that could be resolved.

Has anyone else had this problem and found a way round it at all?

Re: Admin access to Spark 1555

Lesley — Tue, 20 May 2025 17:50:10 GMT

I think there is no way around it. You can only fill in hosts IP's and network ranges.

As workaround you could manage the firewall via VPN client. With VPN client you will get an IP from the pool. This pool you can add as VPN range in the access list:

To set the interface sources from which administrator access is allowed

Re: Admin access to Spark 1555

PhoneBoy — Tue, 20 May 2025 18:47:55 GMT

As DNS queries can be changed by a man-in-the-midddle, we only allow fixed IPs to be configured for admin access.

Re: Admin access to Spark 1555

StevePearson — Wed, 21 May 2025 09:56:58 GMT

Interesting work around thanks!