This article discuss the support of DHCP Option 81 on SRX devices. SRXis acting as a DHCP Server. DHCP option 81 "Client FQDN option" is being implemented on the SRX and Clients. Intention is to make SRX update the A and PTRrecords on the DNS server, whneevr a Client gets a new IP or IP gets renewed. SRX leases out the IP's as expected. The A and PTR records … [Read more...]
DHCP is not supported on J and SRX series devices in the chassis cluster before Junos 12.1X46
This article describes the issue of DHCP combined with chassis cluster not being supported on J and SRX series devices in Junos releases below 12.1X46. The DHCP server, client and relay functionality are supported on all SRX and J-series platforms and Firefly Perimeter. However a limitation is that the DHCP server, client and relay features are not supported in all Junos … [Read more...]
SRX as DHCP client or DHCP relay/server does not work on Junos 11.1R2 and later releases when IP spoofing is configured
This article describes the issue of SRX as DHCP client or DHCP relay/ server not working on Junos 11.1R2 and later releases, when IP spoofing is configured. There are three scenarios where IP spoofing is configured on the zone for the SRX device, but the SRX device does not function correctly as either a DHCP relay/ server or a DHCP client on 11.1R2 release and above … [Read more...]