Hello everyone,
New to OPNsense world and I have a OPN box setup. I recently noticed that if my upstream ISP is using PPPoE, then the traceroute from LAN will show 2x OPNsense IP? I tested one without PPPoE and it works.
For example, ISP1 (without PPPoE, ISP router in bridge mode):
```
traceroute to 1.1.1.1 (1.1.1.1), 64 hops max, 40 byte packets
1 OPNsense (OPNsense IP) 4.406 ms 2.632 ms 3.292 ms
2 ISP Gateway (IPs) 8.288 ms 7.032 ms 8.213 ms
```
and ISP2 (with PPPoE and a VLAN tag):
```
traceroute to 1.1.1.1 (1.1.1.1), 64 hops max, 40 byte packets
1 OPNsense (OPNsense IP) 4.406 ms 2.632 ms 3.292 ms
1 OPNsense (OPNsense IP) 5.187 ms 5.502 ms 4.492 ms
2 ISP Gateway (IPs) 8.288 ms 7.032 ms 8.213 ms
```
I assume it is because PPPoE behavior? How can I prevent it happening?
PS: inside OPNsense, ISP1's first hop will be ISP's gateway but ISP2's first hop is 0.0.0.0 *(looks like internal)