Greetings!
My windows client cannot ping an interface on Vyos when configured via dhcp, but a static ip config, it can! I’ll post the Vyos config below, but first the topology, and client details.
I have a hardware router defined as 172.16.4.1/24, serving dhcp and connected to the internet. This serves ‘normal’ laptops and desktops. There is also a VM esxi host which runs vyos.
The Vyos guest has two eth interfaces (172.16.4.2 & 172.16.9.1). My plan is to have one interface available to NAT to the outside world, the other to be an internal only network.
When I connect the client to the network via dhcp, I cannot ping 172.16.9.1. I think that makes sense. When I add 172.16.4.2 (vyos) as a second gateway to the client config , it still cannot ping 172.16.9.1, but I can get to 172.16.4.2 (vyos). I even tried adding 172.16.9.1 as a third gateway - no dice.
I thought that if I could get to the vyos router it would route to the requested interface…
Here’s where it gets strange - if I change the windows client network config to a static ip, on the 172.16.4 network, then all pings work fine!
dazed and confused,
phil
(the 172.16.1.0/24 network is not used)
vyos@vyos:/var/log$ show int eth
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface IP Address S/L Description
--------- ---------- — -----------
eth0 172.16.4.2/24 u/u VYOS Router
eth1 172.16.1.1/24 A/D 161-network
eth2 172.16.9.1/24 u/u 169-network
vyos@vyos:/var/log$ show config
interfaces {
ethernet eth0 {
address 172.16.4.2/24
description "VYOS Router"
duplex auto
hw-id 00:0c:29:7f:cf:38
smp_affinity auto
speed auto
}
ethernet eth1 {
address 172.16.1.1/24
description 161-network
disable
duplex auto
hw-id 00:0c:29:7f:cf:42
smp_affinity auto
speed auto
}
ethernet eth2 {
address 172.16.9.1/24
description 169-network
duplex auto
hw-id 00:0c:29:7f:cf:4c
smp_affinity auto
speed auto
}
loopback lo {
}
}
nat {
destination {
}
source {
rule 10 {
outbound-interface eth0
protocol all
source {
address 172.16.4.0/24
}
translation {
address masquerade
}
}
rule 15 {
outbound-interface eth0
protocol all
source {
address 172.16.1.0/24
}
translation {
address masquerade
}
}
}
}
protocols {
static {
}
}
service {
dns {
forwarding {
cache-size 0
listen-on eth0
name-server 172.16.4.1
name-server 75.75.75.75
name-server 8.8.8.8
}
}
ssh {
port 22
}
}
system {
config-management {
commit-revisions 20
}
console {
}
gateway-address 172.16.4.1
host-name vyos
login {
user vyos {
authentication {
encrypted-password ****************
plaintext-password ****************
}
level admin
}
}
name-server 172.16.4.1
name-server 8.8.8.8
ntp {
server 0.pool.ntp.xxx {
}
server 1.pool.ntp.xxx {
}
server 2.pool.ntp.xxx {
}
}
package {
auto-sync 1
repository community {
components main
distribution helium
password ****************
url http://packages.vyos.net/vyos
username ""
}
}
syslog {
global {
facility all {
level notice
}
facility protocols {
level debug
}
}
}
time-zone UTC
}