Problemas con check_dchp

Andreas Ericsson ae at op5.se
Wed Sep 28 21:38:36 CEST 2005


Luis Gardea wrote:
> Hi Chris,
> 
> I put disable my iptables, stoped the services
> [tlacuilo at netids libexec]# /etc/init.d/./iptables stop
> 
>  [tlacuilo at netids libexec]# ./check_dhcp 148.210.20.5 -i eth0
> DHCP problem: No DHCPOFFERs were received.
> 
> [tlacuilo at netids redes]# ./tcpdump -n -i eth0 > /home/redes/traffic-eth0
> 
> This is the file
> 
> 11:02:29.130588 IP 147.215.20.12.netbios-dgm >
> 147.215.20.255.netbios-dgm: NBT UDP PACKET(138)
> 
> 11:02:29.146548 arp reply 147.215.20.14 is-at 00:0d:56:71:c3:c3
> 
> 11:02:29.176727 IP 147.215.20.14.bootpc > 255.255.255.255.bootps:
> BOOTP/DHCP, Request from 00:0d:56:71:c3:c3, length: 548
> 
> 11:02:31.879021 IP 0.0.0.0.bootpc > 255.255.255.255.bootps:
> BOOTP/DHCP, Request from 00:0d:56:71:c3:92, length: 300
> 

The dhcp-server doesn't respond.

Is it using MAC-address based assigning of IP-addresses? If so, is the 
nagios server among the nodes that can obtain one?

If that checks out, run ethereal or some such at the windows host to 
make sure it receives the packets and sends something back on the wire.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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