[AusNOG] Juniper SRX300 on Aussie Broadband NBN HFC - DHCP Issue

[Simon Dixon]

Not sure if I've missed something but it seems to work for me.   ABB NBN
connected via HFC to Mullaloo POI in WA.  Running current Juniper
recommended release 19.4R3-S1.3

dicko at SRX300> show dhcp client binding
IP address        Hardware address   Expires     State      Interface
159.196.82.129    84:c1:c1:a6:c3:80  1793        BOUND      ge-0/0/0.0

dicko at SRX300>

dicko at SRX300> traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 40 byte packets
 1  loop159196800.bng1.nextdc-p1.per.aussiebb.net (159.196.80.1)  13.965 ms
 22.100 ms  25.925 ms
 2  HundredGigE0-0-0-7.core2.nextdc-p1.per.aussiebb.net (202.142.143.144)
 15.571 ms  16.236 ms  15.044 ms
 3  as13335.per.edgeix.net.au (103.136.102.17)  16.432 ms  16.919 ms
 16.099 ms
 4  one.one.one.one (1.1.1.1)  18.022 ms  15.971 ms  15.691 ms

dicko at SRX300> show version
Hostname: SRX300
Model: srx300
Junos: 19.4R3-S1.3
JUNOS Software Release [19.4R3-S1.3]

Config snippets from the SRX300.

dicko at SRX300> show configuration security zones security-zone untrust
screen untrust-screen;
host-inbound-traffic {
    system-services {
        ping;
        ssh;
        netconf;
        snmp;
        dhcpv6;
        dhcp;
    }
}
interfaces {
    inactive: pp0.0;
    ge-0/0/0.0;
}

dicko at SRX300> show configuration interfaces ge-0/0/0
description ge-0/0/0_WAN;
unit 0 {
    family inet {
        dhcp;
    }
}

dicko at SRX300> show configuration class-of-service
host-outbound-traffic {
    ieee-802.1 {
        default be;
    }
}

Regards

Simon.


On Thu, 14 Jan 2021 at 12:54, Matthew Young <matt at mattyoung.net.au> wrote:

> If you have access to the site in carbon, then you can do it there yourself
>
> -----Original Message-----
> From: AusNOG <ausnog-bounces at lists.ausnog.net> On Behalf Of Christopher
> Hawker
> Sent: Thursday, 14 January 2021 2:07 PM
> To: Tim Dykes <ttdykes at gmail.com>
> Cc: ausnog at lists.ausnog.net
> Subject: Re: [AusNOG] Juniper SRX300 on Aussie Broadband NBN HFC - DHCP
> Issue
>
> I’ve seen similar issues when replacing routers on ABB’s HFC services. The
> problem turned out the DHCP lease was tied to the MAC of the old router. A
> 2-minute call to Support saw the lease kicked and the new router able to
> retrieve an address. Not just for Juniper, any brand.
>
> CH.
>
> Sent from my iPhone
>
> > On 14 Jan 2021, at 2:17 pm, Tim Dykes <ttdykes at gmail.com> wrote:
> >
> > 
> > Hey Guys,
> >
> > Anyone out there running a Juniper SRX on a NBN HFC link with Aussie BB?
> >
> > I'm having issues that sound like a DHCP problem where we can't get an
> address. Searching around we have found references to a DHCP issue where
> the juniper sends DHCP options out of order (or that NBN fiddles with
> options in a way that only effects Juniper) but cannot find any definitive
> answer or anything saying this was true/false fixed or unrelated.
> >
> > We are running JunOS 19X so would assume any horrible non compliant DHCP
> bugs would be fixed.
> >
> >
> > Anyone able to throw me a working config or verify that there is/was a
> known issue with this.
> >
> > Thanks.
> >
> > /Tim
> > _______________________________________________
> > AusNOG mailing list
> > AusNOG at lists.ausnog.net
> > http://lists.ausnog.net/mailman/listinfo/ausnog
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