show ip sockets
show udp
show tcp brief
show tcp brief all
show control-plane host open-ports
R2610#show ip sockets
Proto Remote Port Local Port In Out Stat TTY OutputIF
17 0.0.0.0 0 10.21.2.20 67 0 0 2211 0
2610#show tcp brief
TCB Local Address Foreign Address (state)
81ED63B4 10.21.2.20.23 10.21.2.8.33642 ESTAB
R2610#show tcp brief all
TCB Local Address Foreign Address (state)
81ED63B4 10.21.2.20.23 10.21.2.8.33642 ESTAB
81CCB088 0.0.0.0.2323 *.* LISTEN
R2610#show tcp brief all | inc LISTEN
81CCB088 0.0.0.0.2323 *.* LISTEN