So, if my WAN IP adress is 83.238.*.* then i need to run DHCP server in the same class of if address. But, if got only this address and i will setup in eg: 83.238.55.10 to 15 range for eth0:0 and there is a machine with WAN address like 83.238.55.13 if gonna to make IP address colission? or then it will be avalible only as LAN Address for my server? /Best Regards *Grzegorz Sołtys*/ __________________ UML Professional (Cert #251574932) W dniu 2013-02-03 14:50, Johnny Hughes pisze: > On 02/03/2013 07:38 AM, Grzegorz Sołtys wrote: >> I have made it, and the DHCP server won't start telling me: >> >> " Feb 3 13:42:21 vlan19 dhcpd: No subnet declaration for eth0:0 (no >> IPv4 addresse s). >> Feb 3 13:42:21 vlan19 dhcpd: ** Ignoring requests on eth0:0. If this >> is not what >> Feb 3 13:42:21 vlan19 dhcpd: you want, please write a subnet >> declaration >> Feb 3 13:42:21 vlan19 dhcpd: in your dhcpd.conf file for the >> network segment >> Feb 3 13:42:21 vlan19 dhcpd: to which interface eth0:0 is >> attached. ** >> " >> >> I have conifgured all files to use DHCPD on this interface. Do you >> need all conifguraiton? > Inside your dhcpd.conf file you need a subnet declaration and the IP > Address of ETH0:0 has to be in that subnet. > > See: > > https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/sect-Configuring_a_Multihomed_DHCP_Server.html > > > So, for example, if I have: > > subnet 192.168.0.16 mask 255.255.255.240 { > option <whatever> > option <whatever2> > } > > Then eth0:0 would have to be inside the IP Range of the subnet ... in > this case, 192.168.0.16/255.255.255.240 is the IP addresses from > 192.168.0.16 through 192.168.0.31 (with 16 and 31 being not usable as > they are the network name and the broadcast address). This would mean > that eth0:0's IP address would need to be somewhere in the range of > 192.168.0.17 and 192.168.0.30 to serve that subnet. > >> W dniu 2013-02-03 14:28, Johnny Hughes pisze: >>> On 02/03/2013 06:38 AM, Grzegorz Sołtys wrote: >>>> Hello All >>>> >>>> I have looking for any specific answer for one thing. >>>> >>>> I have a virtualized Server with only one physical interface eth0 >>>> (WAN). >>>> To run OpenVPN i need to use DHCP server. And here is the question: is >>>> there a chance to run DHCP server on eth0:0 interface? Or it is >>>> impossible ? >>>> >>>> Thanks in advance. >>>> >>> From the EL6 Deployemtn Guide: >>> https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/sect-Configuring_a_Multihomed_DHCP_Server.html >>> >>> >>> >>> "If a system has three network interfaces cards -- eth0, eth1, and eth2 >>> -- and it is only desired that the DHCP daemon listens on eth0, then >>> only specify eth0 in /etc/sysconfig/dhcpd" >>> DHCPDARGS="eth0" >>> >>> So in your case, edit the file /etc/sysconfig/dhcpd and set: >>> >>> DHCPDARGS="eth0:0"; >>> >>> >>> >>> >>> >>> _______________________________________________ >>> CentOS mailing list >>> CentOS at centos.org >>> http://lists.centos.org/mailman/listinfo/centos >> > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos