Reg: dhcp service unresponsive frequently

[Purva Rawan]

We have not configured dhcp relay agent in both dhcp server's configuration .

In one of the server ,dhcp service listening on each interfaces.
For another dhcp server ,dhcp relay agent is serving through Layer 3 switch.

But we are facing this issue for both the servers.

Regards,

Purva


On January 23, 2020 at 8:52 AM Bill Shirley <bill at c3po.polymerindustries.biz>
wrote:

> 
>  I stumbled upon your reply in my INBOX which I seldom check for this email
> account.  I don't
>  know which email client you're using but for Thunderbird you should use
> "Reply List".
> 
>  Your tcpdump of the traffic for the working client is on the same subnet as
> your DHCP server:
> 
>  10.208.39.250.bootpc > 10.208.38.1.bootps
> 
> 
>  However, the two non-working clients appear to be off-subnet:
> 
>  10.208.8.1.bootps > 10.208.0.27.bootps 10.208.16.1.bootps >
> 10.208.0.27.bootps
> 
>  Are you using relays?  What IP addresses does your DHCP server have?
>  ip -o -4 addr
> 
>  Bill
> 
>  On 1/20/2020 7:01 PM, Bill Shirley wrote:
> 
>      > > 
> >      Run a tcpdump on the network interface looking for DHCP traffic.  Are
> > there any responses?
> >      # IPv4
> >      tcpdump -vv -e -n -i lan10 'portrange 67-68'
> >      # IPv6
> >      tcpdump -X -l -vv -e -n -i wifi 'portrange 546-547'
> > 
> >      Who is handling your logging? systemd-journald? rsyslogd?
> > 
> >      Bill
> > 
> >      On 1/20/2020 12:17 AM, Purva Rawan wrote:
> > 
> >          > > > 
> > >          Hi,
> > > 
> > >          We are using ISC-DHCP version is 4.1.1 on centos 6.4 .DHCP
> > > service started becoming unresponsive once every week . The server itself
> > > is up and running, but the DHCP service was unresponsive.We restarted the
> > > service. But after few days dhcp service stopped working. No entries were
> > > written to the dhcp log, and there was nothing helpful in any event log.We
> > > observed that Load on server ,CPU utilization ,HDD utilization,network
> > > traffic are normal during service get freeze.
> > > 
> > >          How to fix this issue?
> > > 
> > >          Regards,
> > > 
> > >          Purva
> > > 
> > > 
> > > 
> > >          For assimilation and dissemination of knowledge, visit
> > > cakes.cdac.in
> > > 
> > >          [150th Anniversary Mahatma Gandhi]
> > > 
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This e-mail is for the sole use of the intended recipient(s) and may
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