I want to establish a low-latency, wired, local-area network (LAN). I have a handful of ubuntu linux machines (en route), but I only have command line access to one of them, call it box-a.

As part of the low-latency effort, the DHCP server dhcpd and DHCP client dhclient has been disabled on box-a. There does not exist a DHCP server on the other boxes. I know the MAC addresses of every box in the network. box-a has a static IPv4 address assigned on interface eth1, 192.168.100.1.

How can I get traffic to flow without DHCP?

I'm trying to manually add the neighbors on box-a?

For example:

# Show the current neighbor table (ARP cache)
ip neighbor show

# Manually add each client device, associating an arbitrary, but
# unique IPv4 address to its unique MAC address
ip neighbor add 192.168.100.2 lladdr aa:bb:cc:dd:ee:02 dev eth1 nud permanent
ip neighbor add 192.168.100.3 lladdr aa:bb:cc:dd:ee:03 dev eth1 nud permanent
ip neighbor add 192.168.100.4 lladdr aa:bb:cc:dd:ee:04 dev eth1 nud permanent

# Show the updated neighbor table (ARP cache)
ip neighbor show

I want to establish a low-latency, wired, local-area network (LAN). I have a handful of ubuntu linux machines (en route), but I only have command line access to one of them, call it box-a.

As part of the low-latency effort, the DHCP server dhcpd and DHCP client dhclient have been disabled on box-a. There does not exist a DHCP server on the other boxes. I know the MAC addresses of every box in the network. box-a has a static IPv4 address assigned on interface eth1, 192.168.100.1.

How can I get traffic to flow without DHCP?

I'm trying to manually add the neighbors on box-a?

For example:

# Show the current neighbor table (ARP cache)
ip neighbor show

# Manually add each client device, associating an arbitrary, but
# unique IPv4 address to its unique MAC address
ip neighbor add 192.168.100.2 lladdr aa:bb:cc:dd:ee:02 dev eth1 nud permanent
ip neighbor add 192.168.100.3 lladdr aa:bb:cc:dd:ee:03 dev eth1 nud permanent
ip neighbor add 192.168.100.4 lladdr aa:bb:cc:dd:ee:04 dev eth1 nud permanent

# Show the updated neighbor table (ARP cache)
ip neighbor show

I want to establish a low-latency, wired, local-area network (LAN). I have a handful of ubuntu linux machines (en route), but I only have command line access to one of them, call it box-a.

As part of the low-latency effort, the DHCP server dhcpd and DHCP client dhclient has been disabled on box-a. There does not exist a DHCP server on the other boxes. I know the MAC addresses of every box in the network. box-a has a static IPv4 address assigned on interface eth1, 192.168.100.1.

How can I get traffic to flow without DHCP?

Is there anything more that needs to happen other than manually adding the neighbors on box-a?

For example:

# Show the current neighbor table (ARP cache)
ip neighbor show

# Manually add each client device, associating an arbitrary, but
# unique IPv4 address to its unique MAC address
ip neighbor add 192.168.100.2 lladdr aa:bb:cc:dd:ee:02 dev eth1 nud permanent
ip neighbor add 192.168.100.3 lladdr aa:bb:cc:dd:ee:03 dev eth1 nud permanent
ip neighbor add 192.168.100.4 lladdr aa:bb:cc:dd:ee:04 dev eth1 nud permanent

# Show the updated neighbor table (ARP cache)
ip neighbor show

I want to establish a low-latency, wired, local-area network (LAN). I have a handful of ubuntu linux machines (en route), but I only have command line access to one of them, call it box-a.

As part of the low-latency effort, the DHCP server dhcpd and DHCP client dhclient has been disabled on box-a. There does not exist a DHCP server on the other boxes. I know the MAC addresses of every box in the network. box-a has a static IPv4 address assigned on interface eth1, 192.168.100.1.

How can I get traffic to flow without DHCP?

I'm trying to manually add the neighbors on box-a?

For example:

# Show the current neighbor table (ARP cache)
ip neighbor show

# Manually add each client device, associating an arbitrary, but
# unique IPv4 address to its unique MAC address
ip neighbor add 192.168.100.2 lladdr aa:bb:cc:dd:ee:02 dev eth1 nud permanent
ip neighbor add 192.168.100.3 lladdr aa:bb:cc:dd:ee:03 dev eth1 nud permanent
ip neighbor add 192.168.100.4 lladdr aa:bb:cc:dd:ee:04 dev eth1 nud permanent

# Show the updated neighbor table (ARP cache)
ip neighbor show