I want to setup Multi gateway on my Ubuntu Machine. 1 for ethernet and another for USB tethering. After browsing, from the below reference
https://www.thomas-krenn.com/en/wiki/Two_Default_Gateways_on_One_System
I have configured my system according to that.
Configuration :
- Ethernet as my default route
- USB is configured through iproute2, taken reference from above mentioned site
Issue is I am unable to ping through USB interface.
$ ping -I usb0 www.google.co.in
PING www.google.co.in (173.194.117.88) from 192.168.42.122 usb0: 56(84) bytes of data.
icmp_seq=1 Destination Host Unreachable
But traceroute is not able to show the gateway correctly for both USB
$ traceroute -i usb0 173.194.117.88
traceroute to 173.194.117.88 (173.194.117.88), 30 hops max, 60 byte packets
1 192.168.200.254 (192.168.200.254) 1.956 ms 2.817 ms *
2 * * *
3 * * *
$ traceroute -i eth0 173.194.117.88
traceroute to 173.194.117.88 (173.194.117.88), 30 hops max, 60 byte packets
1 192.168.200.254 (192.168.200.254) 2.020 ms 2.870 ms 3.568 ms
2 10.251.0.1 (10.251.0.1) 21.041 ms 21.437 ms 21.988 ms
Routing Information
$ ip rou
default via 192.168.200.254 dev eth0 proto static
169.254.0.0/16 dev eth0 scope link metric 1000
192.168.42.0/24 dev usb0 proto kernel scope link src 192.168.42.122 metric 1
192.168.200.0/24 dev eth0 proto kernel scope link src 192.168.200.102 metric 1
$ ip route list table usbrt
default via 192.168.42.129 dev usb0
192.168.42.0/24 dev usb0 scope link src 192.168.42.122
$ ip route list table usbrt
default via 192.168.42.129 dev usb0
192.168.42.0/24 dev usb0 scope link src 192.168.42.122
$ ip -4 addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
inet 192.168.200.102/24 brd 192.168.200.255 scope global eth0
4: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
inet 192.168.42.122/24 brd 192.168.42.255 scope global usb0
$ ip rule show
0: from all lookup local
32764: from all to 192.168.42.122 lookup usbrt
32765: from 192.168.42.122 lookup usbrt
32766: from all lookup main
32767: from all lookup default
ip -4 addr show
to your question by editing it.ip rule add from 192.168.42.122/32 table usbrt
. What's the output ofip rules show
?