![Server receives IP from DHCP-server however can’t ping gateway [closed]](https://cyberdefensego.com/wp-content/uploads/2025/05/192nwns3.png){kind=small}
Abstract:
When connecting a HP Proliant Microserver gen8 server working a contemporary set up of Linux Mint 22.1, utilizing a ethernet cable beforehand utilized by a HP laptop computer with confirmed web connectivity, it will get a brand new IP utilizing DHCP however is unable to ping gateway or entry the web.
Connection data:
IP Deal with 192.168.150.50
Broadcast Deal with 192.168.150.255
Subnet masks 255.255.255.0
Default Route 192.168.150.1
Major DNS 192.168.150.1
IP handle is sure in router DHCP server (Mikrotik):
I can ping myself however not gateway:
ping 127.0.0.1 ✅
ping 192.168.150.50 ✅
ping 192.168.150.1 (vacation spot host unreachable)🔴
Command ip -a
eno2: <BROADCAST,MULTICAST,UP,LOWER UP> mtu 1500 qdisc mq state UP group default qlen 1000
hyperlink/ether 94:18:82:38:dc:11 brd ff:ff:ff:ff:ff:ff
altname enp3s0f1
inet 192.168.150.50/24 brd 192.168.150.255 scope international dynamic noprefixroute eno2
valid_lft 169893sec preferred_lft 169893sec
inet6 fe80:8ca6:e580:9fb9:3f36/64 scope hyperlink noprefixroute
valid_lft without end preferred_lft without end
Command ip r
default by way of 192.168.150.1 dev eno2 proto dhcp src 192.168.150.50 metric 20100
192.168.150.0/24 dev eno2 proto kernel hyperlink src 192.168.150.50 metric 100
Command route -n
| Vacation spot | Gateway | Genmask | Flags | Metric | Ref | Use | Iface |
|---|---|---|---|---|---|---|---|
| 0.0.0.0 | 192.168.150.1 | 0.0.0.0 | UG | 20100 | 0 | 0 | eno2 |
| 192.168.150.0 | 0.0.0.0 | 255.255.255.255 | U | 100 | 0 | 0 | eno2 |
Command arp -a
_gateway (192.168.150.1) at <**incomplete**> on eno2 🔴
Command sudo arping 192.168.150.1
ARPING 192.168.150.1
Timeout
Timeout
...
Command sudo tcpdump -i eno2 arp or icmp
Request who-has _gateway inform <david-Proliant-MicroServer-Gen8>, size 28
Reply _gateway is-at 74:4d:28:a0:7a:a7 (oui Unknown), size 42
So evidently the server receives data from the DHCP-server, however simply ignores it, since arp a</code reveals the route as incomplete! 🔴
I’ve no extra concepts to attempt to get my server linked.
The server and community is my non-public community at dwelling. I attempted to ping the hp-server from the router(gateway) and that failed as properly.
I don’t perceive how DHCP can work however not not ping. I’m a programmer so please excuse me if I missed to incorporate necessary data.
