ordex grazie mille.
Ti mando un po' di info:

Questi i comandi ip a, ip r, ip l ed il traceroute finale
root@GL-MT6000:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
inet6 fe80::24dd:fcff:fe4f:f7b4/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
inet6 fe80::33:83ff:fec5:b522/64 scope link
valid_lft forever preferred_lft forever
4: lan2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
5: lan3@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
6: lan4@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
7: lan5@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue master br-lan state LOWERLAYERDOWN group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
8: lan1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
9: ra0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br-lan state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
10: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
inet 192.168.8.1/24 brd 192.168.8.255 scope global br-lan
valid_lft forever preferred_lft forever
11: ra1: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
12: rax0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br-lan state UNKNOWN group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
13: rax1: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
14: apcli0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
15: apclix0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
16: eth1.1036@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
17: pppoe-wan: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1492 qdisc fq_codel state UNKNOWN group default qlen 3
link/ppp
inet 1XX.1XX.2XX.1XX peer 1XX.1XX.2XX.1XX/32 scope global pppoe-wan
valid_lft forever preferred_lft forever
root@GL-MT6000:~# ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether <redacted>2 brd ff:ff:ff:ff:ff:ff
4: lan2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
5: lan3@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
6: lan4@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
7: lan5@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue master br-lan state LOWERLAYERDOWN mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
8: lan1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
9: ra0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br-lan state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
10: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
11: ra1: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
12: rax0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br-lan state UNKNOWN mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
13: rax1: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
14: apcli0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
15: apclix0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
16: eth1.1036@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
link/ether <redacted> brd ff:ff:ff:ff:ff:ff
17: pppoe-wan: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1492 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 3
link/ppp
root@GL-MT6000:~# ip r
default via 1XX.1XX.2XX.1XX dev pppoe-wan proto static metric 10
1XX.1XX.2XX.1XX dev pppoe-wan proto kernel scope link src 1XX.1XX.2XX.1XX
192.168.8.0/24 dev br-lan proto kernel scope link src 192.168.8.1
root@GL-MT6000:~#
root@GL-MT6000:~# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 46 byte packets
1 1XX.1XX.2XX.1XX (1XX.1XX.2XX.1XX) 3.030 ms 2.838 ms 2.764 ms
2 * * *
3 * * *
4 * * *
5 * * *
6
Idee?
Luca