networking routing (v4, v6, bgp, ospf, lir ops) firewalls and security monitoring lan, wan, vpn
wireless point-to-point multipoint indoor outdoor
unix servers systems design/admin email (imap/ldap-based) voice over ip http, etc.
using data networks since the 80's, BSD UNIX since 1997
+44 1404 811110 (Devon, UK) email <stuart/at/datamatrix/uk>