The name of taegets contains an underscore, and an error is reported in the network_exporter log.

[ilanni2460]

The name of taegets contains an underscore, and an error is reported in the network_exporter log.

network_exporter config file:

this is log:
`
-- Logs begin at Wed 2023-10-25 22:52:11 CST. --
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.106Z caller=monitor_mtr.go:101 level=info type=MTR func=AddTargetDelayed msg="Adding Target: cloudflare-dns1 (vpnprod.ilanni.com) in 0s"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.357Z caller=monitor_mtr.go:87 level=warn type=MTR func=AddTargets msg="Skipping target: vpnprod.ilanni.com" err="resolving target: lookup vpnprod.ilanni.com: i/o timeout"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.357Z caller=monitor_ping.go:71 level=warn type=ICMP func=AddTargets msg="Skipping resolve target: vpnprod.ilanni.com" err="resolving target: lookup vpnprod.ilanni.com: i/o timeout"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.357Z caller=monitor_ping.go:111 level=info type=ICMP func=AddTargetDelayed msg="Adding Target: cloudflare-dns0_1 119.8.16.11 (119.8.16.11/119.8.16.11) in 0s"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.357Z caller=monitor_tcp.go:73 level=warn type=TCP func=AddTargets msg="Skipping resolve target: vpnprod.ilanni.com:443" err="resolving target: lookup vpnprod.ilanni.com: i/o timeout"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.357Z caller=monitor_tcp.go:128 level=info type=TCP func=AddTargetDelayed msg="Adding Target: cloudflare-dns-https 19.8.16.10 (19.8.16.10/19.8.16.10:443) in 0s"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.607Z caller=monitor_ping.go:87 level=warn type=ICMP func=AddTargets msg="Skipping resolve target: vpnprod.ilanni.com" err="resolving target: lookup vpnprod.ilanni.com: i/o timeout"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.607Z caller=monitor_ping.go:111 level=info type=ICMP func=AddTargetDelayed msg="Adding Target: cloudflare-dns 19.8.16.10 (19.8.16.10/19.8.16.10) in 0s"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.607Z caller=monitor_tcp.go:94 level=warn type=TCP func=AddTargets msg="Skipping resolve target: cloudflare-dns-https1" err="resolving target: lookup vpnprod.ilanni.com: i/o timeout"
Oct 31 10:14:52 qxt-gw-03 network_exporter[20571]: ts=2023-10-31T02:14:52.858Z caller=monitor_ping.go:87 level=warn type=ICMP func=AddTargets msg="Skipping resolve target: vpnprod.ilanni.com" err="resolving target: lookup vpnprod.ilanni.com: i/o timeout"

`