What does the command "ip route" show
These are my outputs from the command ip route
10.1.40.0/24 via 10.255.115.1 dev eth1
10.255.114.0/23 dev eth1 proto kernel scope link src 10.255.115.18
default via 10.1.1.1 dev eth0 metric 100
Am I understanding correctly?
- packet goes to
10.1.40.0/24
will be sent to next hop router(10.255.115.1
) via eth1 ? - 10.255.114.0/23 will be sent via eth1 which ip is
10.255.115.18
, NOT via a router??? - others will be sent to next hop router(
10.1.1.1
) via eth0 ?
What does proto kernel scope link src
mean?
Your assumption is accurate:
-
10.255.114.0/23
is directly connected as it is in the same subnet as10.255.115.18
(i.e./23
is10.255.114.0
to10.255.115.255
). -
scope link
means the packet is just dropped on the link and sent straight to interface as the destination is in the subnet will "hear" the packet so no gateway needed.
I made a small schema to make it easier to understand