Change Details

PPTP session is closed, interfaces is deleted, but the ports is open: ``` [root@sk5-301-vpn3 sysconfig]# netstat -not Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State Timer tcp 0 0 212.193.87.60:80 178.154.144.16:43334 SYN_RECV on (17.74/5/0) tcp 0 0 212.193.87.60:80 95.108.155.16:41802 SYN_RECV on (9.94/4/0) tcp 0 0 212.193.87.60:80 77.88.4.11:35326 SYN_RECV on (7.94/3/0) tcp 0 0 212.193.87.60:1723 5.166.36.60:58123 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.24.0.163:50719 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.25.136:51052 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.32.123.139:48333 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.25.136:49797 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.1.132:62966 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.25.136:52622 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.2.130:47321 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 217.114.236.137:31200 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 90.151.99.156:59882 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.1.12:58599 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.3.18:49678 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.3.130:47758 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.25.136:52556 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.24.1.6:41916 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 217.174.160.75:49685 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.48.8.150:62533 ESTABLISHED off (0.00/0/0) tcp 0 304 10.32.240.28:22 10.96.192.49:51110 ESTABLISHED on (0.07/0/0) tcp 0 0 212.193.87.60:1723 217.114.225.94:22722 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.2.18:58653 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 94.190.119.33:49918 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.2.18:62409 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 217.114.236.92:9608 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.24.0.70:63027 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.9.204:55466 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 31.162.93.87:49934 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.33.2:57931 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 212.75.135.236:55186 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.1.135:37782 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 94.190.119.33:49596 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.15.4:26311 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.32.123.2:1027 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 85.140.12.147:32085 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.25.136:49796 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.48.8.34:62330 ESTABLISHED off (0.00/0/0) tcp 0 0 10.32.240.28:1723 10.64.0.143:37120 ESTABLISHED off (0.00/0/0) tcp 0 0 212.193.87.60:1723 128.75.59.226:50588 ESTABLISHED off (0.00/0/0) ``` Thus 36 connections are visible. There are actually 11 interfaces: [root@sk5-301-vpn3 sysconfig]# ifconfig | grep pptp | wc -l 11 It confirms conntrack: ``` [root@sk5-301-vpn3 sysconfig]# conntrack -L -p tcp --dport 1723 tcp 6 431983 ESTABLISHED src=10.64.2.130 dst=10.32.240.28 sport=47321 dport=1723 src=10.32.240.28 dst=10.64.2.130 sport=1723 dport=47321 [ASSURED] mark=0 use=1 tcp 6 431977 ESTABLISHED src=10.32.123.2 dst=10.32.240.28 sport=1027 dport=1723 src=10.32.240.28 dst=10.32.123.2 sport=1723 dport=1027 [ASSURED] mark=0 use=1 tcp 6 431981 ESTABLISHED src=10.64.3.130 dst=10.32.240.28 sport=47758 dport=1723 src=10.32.240.28 dst=10.64.3.130 sport=1723 dport=47758 [ASSURED] mark=0 use=1 tcp 6 431972 ESTABLISHED src=10.24.0.163 dst=10.32.240.28 sport=50719 dport=1723 src=10.32.240.28 dst=10.24.0.163 sport=1723 dport=50719 [ASSURED] mark=0 use=1 tcp 6 431975 ESTABLISHED src=10.64.1.135 dst=10.32.240.28 sport=37782 dport=1723 src=10.32.240.28 dst=10.64.1.135 sport=1723 dport=37782 [ASSURED] mark=0 use=1 tcp 6 431994 ESTABLISHED src=10.64.0.143 dst=10.32.240.28 sport=37120 dport=1723 src=10.32.240.28 dst=10.64.0.143 sport=1723 dport=37120 [ASSURED] mark=0 use=1 tcp 6 431994 ESTABLISHED src=10.32.123.139 dst=10.32.240.28 sport=48333 dport=1723 src=10.32.240.28 dst=10.32.123.139 sport=1723 dport=48333 [ASSURED] mark=0 use=1 tcp 6 431997 ESTABLISHED src=10.48.8.150 dst=10.32.240.28 sport=62533 dport=1723 src=10.32.240.28 dst=10.48.8.150 sport=1723 dport=62533 [ASSURED] mark=0 use=1 tcp 6 431979 ESTABLISHED src=10.24.1.6 dst=10.32.240.28 sport=41916 dport=1723 src=10.32.240.28 dst=10.24.1.6 sport=1723 dport=41916 [ASSURED] mark=0 use=1 tcp 6 431971 ESTABLISHED src=10.64.33.2 dst=10.32.240.28 sport=57931 dport=1723 src=10.32.240.28 dst=10.64.33.2 sport=1723 dport=57931 [ASSURED] mark=0 use=1 tcp 6 82390 ESTABLISHED src=217.114.236.92 dst=212.193.87.60 sport=9608 dport=1723 src=212.193.87.60 dst=217.114.236.92 sport=1723 dport=9608 [ASSURED] mark=0 use=1 tcp 6 431997 ESTABLISHED src=10.48.8.34 dst=10.32.240.28 sport=62330 dport=1723 src=10.32.240.28 dst=10.48.8.34 sport=1723 dport=62330 [ASSURED] mark=0 use=1 conntrack v1.4.4 (conntrack-tools): 12 flow entries have been shown. ``` Accel-ppp send data to ISE about 11 sessions. ``` {F291}