+Default HOST is 10.0.0.1 or 10.2.0.1 if they are the gateway, otherwise
+it must be specified.
+
+Note, use -m "''" to send an empty mac arg. When we get a new enough
+bash, we can use ${@@Q} to properly pass an empty var.
+
+
+Note, if we dont have internet yet, then just download the bash package,
+scp it over manually and install it, eg:
+
+cat /etc/opkg/distfeeds.conf
+wget https://librecmc.org/librecmc/downloads/snapshots/v1.5.1-core/packages/mips_24kc/packages/bash_5.0-3_mips_24kc.ipk
+scp bash_5.0-3_mips_24kc.ipk wrt:
+ssh wrt
+opkg install /root/bash_5.0-3_mips_24kc.ipk