Hi guys.
It is a bit complicated so I try to break down my problem as much as understandable.
I have a UTM SG310, running on current FW 9.604-2.
On this UTM, there are public IP adresses (/28), bound to eth1, connected to a corporate Internet-connection. On eth7, I have a dialup cable modem connection for my internal users accessing the web so that they don't use bandwidth on my corporate connection. So it looks like the following:
internal network -> UTM (eth1) -> public /28 network -> corporate Internet router from my ISP
internal network -> UTM (eth7) -> dialup modem (FritzBox)
Some weeks ago, I removed two of the IP (.10 and .14) that was bound to eth1 and put them on a different firewall, just for physical separation of DMZ and internal network.
My problem is now, that accessing both IP (.10 and .14) gets handled different from my SG310:
1) accessing the .10 from my internal network gets routet as it should over eth7.
1.1) accessing the internet in general from my internal netweork gets routed as it should over eth7.
2) accessing the .14 from my internal network gets routed wrongly over eth1.
When attaching Wireshark between UTM's eth1 and my corporate Internet router, I see private IP adresses (I use for internal network) trying to access the internet.
I tried everything to get the traffic for .14 over eth7 but without success:
- masquerading
- nat rule
- statical routing to the .14
- multipath rule
- rebooting the UTM
All without access.
I am lost, does anybody have any idea or hint for me?
Best regards, Christian
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