OPNsense Forum

English Forums => General Discussion => Topic started by: jonm on August 04, 2021, 02:44:17 pm

Title: Traceroute strange result
Post by: jonm on August 04, 2021, 02:44:17 pm
If I run a traceroute from a client on my internal network to any Internet address, the first hop after my Opnsense box is always * * * then I get a normal result i.e. a bunch of addresses inside my ISP then on to the destination.

My question is can I do anything about this? Is it some setting I have 'wrong' in Opnsense or could it be the cable modem that's connected to my ISP that's the issue?

Here's an example:

Code: [Select]
$ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets
 1  router (192.168.2.1)  0.464 ms  0.290 ms  0.343 ms
 2  * * *
 3  rei-kae-sw1-po-2.gw.imp.ch (157.161.254.165)  10.412 ms  8.961 ms  9.801 ms
 4  dornach-sw1-vlan-2163.gw.imp.ch (157.161.250.38)  11.975 ms  10.702 ms  11.669 ms
 5  prt-hea-sw1-vlan-2030.gw.imp.ch (157.161.251.21)  10.230 ms  10.364 ms  11.938 ms
 6  prt-cbl-sw1-vlan-2003.gw.imp.ch (157.161.251.9)  13.967 ms  14.590 ms  25.963 ms
 7  prt-cbl-core2-ve-3020.gw.imp.ch (157.161.254.153)  10.812 ms  11.426 ms  11.980 ms
 8  72.14.219.38 (72.14.219.38)  11.828 ms  10.343 ms  11.934 ms
 9  74.125.243.161 (74.125.243.161)  12.526 ms
    74.125.243.145 (74.125.243.145)  12.765 ms
    74.125.243.161 (74.125.243.161)  11.525 ms
10  172.253.50.5 (172.253.50.5)  13.062 ms  15.955 ms
    172.253.50.17 (172.253.50.17)  14.812 ms
11  dns.google (8.8.8.8)  10.418 ms  15.114 ms  15.334 ms

Title: Re: Traceroute strange result
Post by: allebone on August 04, 2021, 03:37:32 pm
The next hop is the gateway for your opnsense machine so probably it does not respond to pings. Im assuming that the gw on your opnsense box is your ISP. If its your own equipment then you can enable pinging.