cpu☢ ls /net
	/net/arp
	/net/bootp
	/net/cs
	/net/dns
	/net/esp
	/net/ether0
	/net/ether1
	/net/gre
	/net/icmp
	/net/icmpv6
	/net/il
	/net/ipifc
	/net/ipmux
	/net/iproute
	/net/ipselftab
	/net/log
	/net/ndb
	/net/rudp
	/net/tcp
	/net/tls
	/net/udp
	cpu☢ ip/ipconfig ether /net/ether1 192.168.10.1 255.255.255.0
	ip/ipconfig: write(add 192.168.10.1 /120 192.168.10.0 0): interface not bound
	ip/ipconfig: can't start IPv4 on /net/ether1, address 192.168.10.1