SELECTING means that an OFFER has been sent to the client (or at least the
switch thinks it has relayed it), but the REQUEST hasn't come back from the
client.
I have seen this in some instances where the client is expecting a Unicast
reply from the relay agent rather than a broadcast or vice-versa - fix with:
set forwarding-options dhcp-relay overrides layer2-unicast-replies
Nice tip on the route-suppression statement William - that one has been
annoying me for a while with JDHCPd on the SRX...
Cheers,
Ben
On 19 Sep 2014, at 12:01 am, Chris Jones <ch...@sdnessentials.com> wrote:
> My DHCP clients are all stuck in SELECTING state. Has anyone ever seen that,
> or maybe know what causes it?
>
> root@DVT-EX9200> show dhcp relay binding
>
> IP address Session Id Hardware address Expires State
> Interface
> 0.0.0.0 18 00:25:90:3d:76:34 0 SELECTING irb.30
> 0.0.0.0 19 00:25:90:3d:e5:13 0 SELECTING irb.30
> 0.0.0.0 17 00:25:90:6d:f0:c3 0 SELECTING irb.30
> 0.0.0.0 23 d4:be:d9:95:b6:4f 0 SELECTING irb.16
>
>
>
>
>> On Sep 16, 2014, at 3:13 PM, William McLendon <wimcl...@gmail.com> wrote:
>>
>> this is a working DHCP config on EX9200s — make sure you include the
>> forward-snooped-clients all-interfaces statement, or any transit DHCP packet
>> that traverses an interface without DHCP relay configured will be eaten by
>> the EX9200 — its the most asinine thing in the world to have (a carryover
>> from MX some sort of DHCP security i’m sure), but its completely
>> undocumented it does this from what i’ve seen.
>>
>> dhcp-relay {
>> forward-snooped-clients all-interfaces;
>> server-group {
>> CAMPUS {
>> 192.168.168.168;
>> }
>> }
>> active-server-group CAMPUS;
>> route-suppression {
>> destination;
>> }
>> group LOCAL-NETS {
>> interface ge-5/0/0.304;
>> interface irb.9;
>> }
>> }
>> }
>>
>>
>> the route-suppression destination statement also prevents it from installing
>> access-internal host routes and permanent ARP entries for every DHCP lease.
>>
>>
>> will
>> _______________________________________________
>> juniper-nsp mailing list juniper-nsp@puck.nether.net
>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>
> Chris Jones, JNCIE-ENT #272 / JNCIP-SP
> SDN Engineer
> www.sdnessentials.com
> Cell: 858-888-0373
> E-Mail: ch...@sdnessentials.com
>
>
> _______________________________________________
> juniper-nsp mailing list juniper-nsp@puck.nether.net
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