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Operating Systems Linux Debian How do i correct restart network-services in Debian? Post 303034383 by int3g3r on Wednesday 24th of April 2019 10:00:40 AM
Old 04-24-2019
How do i correct restart network-services in Debian?

Hello,


I would like to do follow steps.
  • Set a static IP-Adress on eth0 (For Testing)
  • Set DHCP on eth0
  • All steps should be done without a single reboot.




/etc/network/interfaces
Code:
  
   iface eth0 inet static
   address 192.0.2.7/24
   gateway 192.0.2.254

How do i perform the windows command "ipconfig /renew" on Debian ?

If i use "systemctl networking restart" -> "ip a" static ip doesnt show up
If i use "ifup eth0" -> "ip a" shows the correct ip address, why is this needed ? I never deactivated my interface eth0. This makes no sense to me i restartet the complete network service before.
What is the correct way to restart the network service ?

/etc/network/interfaces
Code:
  
   iface eth0 inet dhcp

How can i ask for a new ip form dhcp (what is the command)?
Do i need the "ifup eth0" here again ?


Regards,
Integer
 

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arpsend(8)							    Containers								arpsend(8)

NAME
arpsend - send ARP requests SYNOPSIS
arpsend -D -e target_ip [ -e target_ip ...] [-c count] [-w timeout] interface arpsend -U -i source_ip [-c count] [-w timeout] interface DESCRIPTION
Utility arpsend sends ARP packets on device interface to detect or update neighbours' ARP caches with a given IP. COMMANDS
Run utility with one of the following commands: -D Send broadcast ARP request to detect neighbours with target_ip. You have to specify target_ip (-e option). -U Send broadcast ARP request to update neighbours' ARP caches with source_ip. You have to specify source_ip (-i option). OPTIONS
-c count Number of packets to send. Default is infinity. -w interval Interval between packets, in seconds. Default is 1 second. -i source_ip_address Set source IP address field in ARP packet. -e target_ip_address Set target IP address field in ARP packet. Note that you can specify -e option multiple times to detect many IP addresses in one utility call. EXIT STATUS
arpsend returns 0 upon successful execution. If something goes wrong, it returns an appropriate error code. 1 EXC_USAGE Usage error 2 EXC_SYSTEM System error 3 EXC_RECV ARP reply was received EXAMPLES
To send request on interface eth0 to detect any neighbour computers with IP 192.168.10.200: arpsend -D -e 192.168.10.200 eth0 To send request on interface eth0 to update neighbours' ARP caches with IP 192.168.10.200: arpsend -U -i 192.168.10.200 eth0 NOTES
Interface you use have to be arpable and not be loopback (i.e. /sbin/ip link show interface should show neither NOARP nor LOOPBACK flags in interface parameters). SEE ALSO
vzctl(8). LICENSE
Copyright (C) 2000-2011, Parallels, Inc. Licensed under GNU GPL. OpenVZ 28 Jun 2011 arpsend(8)
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