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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Inspection for Voice and Video Protocols
Skinny (SCCP) Inspection
Verifying and Monitoring SCCP Inspection
The show skinny command assists in troubleshooting SCCP (Skinny) inspection engine issues. The
following is sample output from the show skinny command under the following conditions. There are
two active Skinny sessions set up across the ASA. The first one is established between an internal Cisco
IP Phone at local address 10.0.0.11 and an external Cisco CallManager at 172.18.1.33. TCP port 2000
is the CallManager. The second one is established between another internal Cisco IP Phone at local
address 10.0.0.22 and the same Cisco CallManager.
hostname# show skinny
LOCAL FOREIGN STATE
---------------------------------------------------------------
1 10.0.0.11/52238 172.18.1.33/2000 1
MEDIA 10.0.0.11/22948 172.18.1.22/20798
2 10.0.0.22/52232 172.18.1.33/2000 1
MEDIA 10.0.0.22/20798 172.18.1.11/22948
The output indicates that a call has been established between two internal Cisco IP Phones. The RTP
listening ports of the first and second phones are UDP 22948 and 20798 respectively.
The following is sample output from the show xlate debug command for these Skinny connections:
hostname# show xlate debug
2 in use, 2 most used
Flags: D - DNS, d - dump, I - identity, i - inside, n - no random,
r - portmap, s - static
NAT from inside:10.0.0.11 to outside:172.18.1.11 flags si idle 0:00:16 timeout 0:05:00
NAT from inside:10.0.0.22 to outside:172.18.1.22 flags si idle 0:00:14 timeout 0:05:00
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