Hi Wei, 

 

I use shared network without security groups. I did a cleanup and same issue 
after. I have shared network and advanced in multiple different zones, but only 
in one zone I have this issue. I think it started suddenly after a deploy. 

Here is a tcpdump from router, looks how ignore still. I turn off and change to 
a different IP, and then I turn on and the IP is allocated.

Request with ignored request for IPs from this range 23.227.xxx.32/27:

19:44:20.453093 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 334: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 292

19:44:24.319207 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 334: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 292

19:44:28.051571 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 334: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 292

19:44:35.599400 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 334: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 292

19:44:52.334213 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 334: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 292

 

 

And same instance after I turn off and change again the IP/ turn on. Here works:

 

19:48:38.224138 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 334: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 292

19:48:38.224432 1e:00:19:00:00:64 > 1e:00:d5:00:00:79, ethertype IPv4 (0x0800), 
length 352: 23.29.xxx.130.67 > 23.29.xxx.131.68: BOOTP/DHCP, Reply, length 310

19:48:38.235802 1e:00:d5:00:00:79 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), 
length 346: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 
1e:00:d5:00:00:79, length 304

19:48:38.237614 1e:00:19:00:00:64 > 1e:00:d5:00:00:79, ethertype IPv4 (0x0800), 
length 352: 23.29.xxx.130.67 > 23.29.xxx.131.68: BOOTP/DHCP, Reply, length 310


So, it is quite strange because I am ignoring multiple IPs. Now, if I restart 
VMs which have IPs from this range 23.227.xxx.32/27, they are going to be 
ignored at boot to get the IP. I have already tested this with a few. I also 
have this issue with a different class.


Thank you,

Cristian

 

   

On Thu, Oct 19, 2023, 20:45 Wei ZHOU <ustcweiz...@gmail.com 
<mailto:ustcweiz...@gmail.com> > wrote:

Hi,

Do you use shared network with security groups?  Can you restart network
with cleanup and retry?

-Wei

在 2023年10月19日星期四, <cristian.c@istream.today> 写道:

> Hello,
>
>
>
>   I'm experiencing strange issue, the Guest router started today to ignore
> the requests for specific IP class.
>
> Oct 19 16:22:49 dnsmasq-dhcp[24437]: 49204406 available DHCP subnet:
> 217.79.xxx.129/255.255.255.128 <http://255.255.255.128> 
>
> Oct 19 16:22:49 dnsmasq-dhcp[24437]: 49204406 available DHCP subnet:
> 66.206.xxx.179/255.255.255.248 <http://255.255.255.248> 
>
> Oct 19 16:22:49 dnsmasq-dhcp[24437]: 49204406 client provides name: ubuntu
>
> Oct 19 16:22:49 dnsmasq-dhcp[24437]: 49204406 DHCPDISCOVER(eth0)
> 1e:00:30:00:04:67 ignored
>
> Oct 19 16:23:53 dnsmasq-dhcp[24437]: 49204406 available DHCP subnet:
> 217.79.xxx.129/255.255.255.128 <http://255.255.255.128> 
>
> Oct 19 16:23:53 dnsmasq-dhcp[24437]: 49204406 available DHCP subnet:
> 66.206.xxx.179/255.255.255.248 <http://255.255.255.248> 
>
> Oct 19 16:23:53 dnsmasq-dhcp[24437]: 49204406 client provides name: ubuntu
>
> Oct 19 16:23:53 dnsmasq-dhcp[24437]: 49204406 DHCPDISCOVER(eth0)
> 1e:00:30:00:04:67 ignored
>
>
>
>
>
> root@r-6137-VMAMS:~# cat /etc/dhcphosts.txt | grep "1e:00:30:00:04:67"
>
> 1e:00:30:00:04:67,23.227.xxx.54,testignore001,infinite
>
>
>
> root@r-6137-VMAMS:~# cat /etc/dhcphosts.txt | wc -l
>
> 144
>
>
>
> If I reboot any VM with an IP from this class 23.227.xxx.129, which was
> allocated without any issue before, after reboot is I'm going to see
> ignored
> and is going to be left without IP assigned.
>
> Setup: ACS 4.18.1 upgrade from previous version with VMware.
>
> Any suggestions?
>
> Thank you.
>
>

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