**SOLVED** DHCP server problem inside centos 5.2 VE [message #32094] |
Mon, 21 July 2008 06:26 |
jiadar
Messages: 4 Registered: July 2008
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Junior Member |
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I am having trouble running a DHCP server inside a VE. The host node is Centos 5.2 kernel 2.6.18-53.1.19.el5.028stab053.14 and kernel 2.6.24-ovz005.1 on an x86_64 SMP machine.
Except for DHCP, all other TCP network services I have tested (ssh, http, ping) work to and from the host node and container; and also work to/from any other host on my network and the container. I have not tested any other broadcast services (smb, wins, etc).
My firewall is disabled, iptables shows accept with no rules, SELinux is disabled, and my routes seem to be correct. The guest is also running Centos 5.2 which I created with mach, then modified following the instructions in the wiki. I've tried this with a bridge and without, the same results are obtained. The DHCP packets come into VE0 eth0, but never go to the veth interface, and subsequently never make it inside the container.
I've looked at every post I could find concerning DHCP. I don't think a firewall is blocking things. I don't know if it is a problem with my template, as everything else works great. I would appreciate any help and suggestions.
Attached file contains the specific details, tcpdumps, and other diagnostic evidence.
[Updated on: Thu, 24 July 2008 19:23] Report message to a moderator
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Re: DHCP server problem inside centos 5.2 VE [message #32145 is a reply to message #32127] |
Tue, 22 July 2008 21:28 |
jiadar
Messages: 4 Registered: July 2008
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Junior Member |
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[root@VE0 ~]# iptables -t mangle -L
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
root@VE0 ~]# iptables -t nat -L
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[Updated on: Tue, 22 July 2008 21:28] Report message to a moderator
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