Arch Linux

FriedChicken

Member

Registered: 2015-11-19

Posts: 2

System not broadcasting hostname on LAN

I am currently setting up my NAS/Homeserver with the almighty Arch Linux. However, I have been running into some trouble regarding the configuration of the static IP on LAN. Although my server is finally connected to the network using a static profile in netctl, the system is not broadcasting its hostname (set as Homeserver in both the netctl profile and /etc/hosts) and is therefore not showing up in the list of connected devices in my DD-WRT router (ASUS RT-N66U).

cat /etc/netctl/static

Description=Static connection enp1s0.
Interface=enp1s0
Connection=ethernet
IP=static
Address=192.168.2.5/24
Gateway=192.168.2.1
DNS=192.168.2.1
Hostname=Homeserver
Broadcast=192.168.2.255

TimeoutUp=300
TimeoutCarrier=300

ExecUpPost='/usr/bin/ethtool -s enp1s0 wol g'

ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether bc:5f:f4:6e:4d:36 brd ff:ff:ff:ff:ff:ff

Could someone point out what I am currently doing wrong?

Bonus question: what parameters for grep should I use to only output the last two lines of ip link?

byte

Member

From: Düsseldorf (DE)

Registered: 2006-05-01

Posts: 2,046

Re: System not broadcasting hostname on LAN

1) If it's a static profile, why should it broadcast a hostname? That's a DHCP-only thing and if your server doesn't request anything from your router it doesn't show up in the list, simple as that.

2) 'ip link | tail -2'

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1000

FriedChicken

Member

Registered: 2015-11-19

Posts: 2

Re: System not broadcasting hostname on LAN

Cool, thanks for the clarification!

However, just being curious, is there any way to make my system appear in the router's list with active clients (which includes some other static addresses) without enabling DHCP?

samlung

Member

Registered: 2015-12-19

Posts: 10

Re: System not broadcasting hostname on LAN

you're better off setting up DHCP reservations by MAC on your router.

the only other way I saw a router recognize machine names was with NetBIOS (samba nmbd) broadcasts. no idea if mdns/avahi would work and don't remember DD-WRT.