Which IP Address is used for outgoing Gateway connection and how to change the outgoing IP

I have an ZTNA Client which is connected to an ZTNA Firewall Gateway.

The Client is connecting to an ZTNA Ressource (192.168.1.10) which is behind an IPSEC S2S VPN of the Firewall meantioned above as the ZTNA Gateway.

The ZTNA Gateway has more configured VLAN Interfaces internaly. I can see on the other Site of the IPSEC S2S (Firewall 2) connection, that the ZTNA Gateway is useing the first available IP Address of the VLAN Interfaces for the outgoing connection to the ZTNA-Ressource (172.16.10.1). 

Can I change the Outgoing IP Address of the ZTNA Gateway?

Is that right that the Firewall is using the first available IP Address or is there an mechanismus which IP Address is choosen?



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[edited by: Raphael Alganes at 11:30 AM (GMT -8) on 3 Dec 2024]