[PLUG] Router configuration: connecting laptop [FIXED]

Russell Senior russell at personaltelco.net
Sun Dec 8 00:27:29 UTC 2019


The routes are fine, you don't need to set a route at all. Show us the
result of "ip a".

On Sat, Dec 7, 2019 at 4:17 PM Rich Shepard <rshepard at appl-ecosys.com>
wrote:

> On Sat, 7 Dec 2019, Russell Senior wrote:
>
> > By easy I just meant that there are no obstacles. Just "ip addr add"
> twice.
>
> I had seen that but hadn't tried it until now. The Dell is now on two
> subnets and neither can communicate with the router:
>
> [root at lemna ~]# ip addr add 192.168.1.0/24 dev eth0
> [root at lemna ~]# ip add show eth0
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP
> group default qlen 1000
>      link/ether b8:ac:6f:69:63:ca brd ff:ff:ff:ff:ff:ff
>      inet 192.168.55.3/24 brd 192.168.55.255 scope global eth0
>         valid_lft forever preferred_lft forever
>      inet 192.168.1.0/24 scope global eth0
>         valid_lft forever preferred_lft forever
>      inet6 fe80::baac:6fff:fe69:63ca/64 scope link
>         valid_lft forever preferred_lft forever
>
> # ping 192.168.1.1
> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> From 192.168.1.0 icmp_seq=1 Destination Host Unreachable
> From 192.168.1.0 icmp_seq=2 Destination Host Unreachable
> From 192.168.1.0 icmp_seq=3 Destination Host Unreachable
> From 192.168.1.0 icmp_seq=4 Destination Host Unreachable
> ^C
> --- 192.168.1.1 ping statistics ---
> 7 packets transmitted, 0 received, +4 errors, 100% packet loss, time 6000ms
> pipe 4
> [root at lemna ~]# ping 192.168.55.4
> PING 192.168.55.4 (192.168.55.4) 56(84) bytes of data.
> From 192.168.55.3 icmp_seq=1 Destination Host Unreachable
> From 192.168.55.3 icmp_seq=2 Destination Host Unreachable
> From 192.168.55.3 icmp_seq=3 Destination Host Unreachable
> From 192.168.55.3 icmp_seq=4 Destination Host Unreachable
>
> --- 192.168.55.4 ping statistics ---
> 7 packets transmitted, 0 received, +4 errors, 100% packet loss, time 6000ms
> pipe 4
> [root at lemna ~]# ip r
> default via 192.168.55.4 dev eth0  metric 1
> 127.0.0.0/8 dev lo  scope link
> 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.0
> 192.168.55.0/24 dev eth0  proto kernel  scope link  src 192.168.55.3
>
> Does it matter that the second subnet is 192.168.1.0/24 rather than
> 192.168.1.55/24?
>
> Rich
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