[j-nsp] SRX - DHCP client is not working right

[Brent Jones]

On Wed, Oct 12, 2011 at 2:07 AM, martin papik <papik at utia.cas.cz> wrote:
> Hi,
> a have detected very strange behaviour when SRX interface is configured as
> DHCP client interface and this interface (untrust zone)  is connected to
> cable ISP modem (Motorola SurfBoard SB 5101). The ISP is UPC company
> (Europe).  The IP assigned address from ISP is related to MAC address of SRX
> interface. But assigned IP is not right. With different device (like linksys
> WRT with clone MAC) the assigned IP is OK.
> I found same problem in juniper forum discussion here:
> http://www.juniperforum.com/index.php?topic=8129.0
>
> My conf is:
>
> version 11.1R3.5;
>
> interfaces {
>    fe-0/0/0 {
>        unit 0 {
>            family inet {
>                dhcp;
>            }
>        }
>    }
>
> ......
>
>  security-zone untrust {
>            screen untrust-screen;
>            interfaces {
>                fe-0/0/0.0 {
>                    host-inbound-traffic {
>                        system-services {
>                            dhcp;
>                            ping;
>                        }
>                    }
>                }
>            }
>        }
>
> Have anybody some idea why assigned IP from ISP is not  right (MAC is
> registred by ISP and with another devices DHCP client working with good IP)?
> I was thinking about TTL parameter, but I dont know how I can change
> it..............
>
> Thanks
> Martin
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
>

The DHCP client code doesn't work well (or at all) on 11.1 right now.

Roll back to 10.4, and you'll be good to go

-- 
Brent Jones
brent at servuhome.net