tcpspy log interpretation

The below log entries are from tcpspy in syslog. What do they mean? they are from the firewall which is running a transparent squid proxy and iptables. noone inside the firewall could have hit those external IPs for any reason. thanks Jul 26 17:02:15 portal tcpspy[330]: disconnect: user prox

tcpspy log interpretation

The below log entries are from tcpspy in syslog. What do they mean? they are from the firewall which is running a transparent squid proxy and iptables. noone inside the firewall could have hit those external IPs for any reason. thanks Jul 26 17:02:15 portal tcpspy[330]: disconnect: user proxy