$  uname -aimnprsvX
SunOS solaris 5.11 snv_82 i86pc i386 i86pcSystem = SunOS
Node = solaris
Release = 5.11
KernelID = snv_82
Machine = i86pc
BusType = <unknown>
Serial = <unknown>
Users = <unknown>
OEM# = 0
Origin# = 1
NumCPU = 2

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If for any reason, the Ethernet link disappears (lost ip address):
#ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
	inet 127.0.0.1 netmask ff000000 
rge0: flags=201100842<BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4,CoS> mtu 1500 index 2
	inet 0.0.0.0 netmask 0 
	ether 0:1c:f0:5b:77:80 
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
	inet6 ::1/128 


#ifconfig rge0 auto-dhcp
# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
	inet 127.0.0.1 netmask ff000000 
rge0: flags=201104843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,ROUTER,IPv4,CoS> mtu 1500 index 2
	inet 192.168.1.38 netmask ffffff00 broadcast 192.168.1.255
	ether 0:1c:f0:5b:77:80 
lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1
	inet6 ::1/128 

#ifconfig rge0 auto-dhcp