# [L2TPD_SESSION_IP_DUPLICATE](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE)

## SYSLOG Details
- **Message**: IP address <variable>peer-address</variable>/<variable>prefix-length</variable> (<variable>vrf</variable>) already used in other session (L2TP tunnel <variable>tunnel-id</variable>, session <variable>session-id</variable>); closing session
- **Help**: The IP address configured for this subscriber is already used by another session
- **Description**: The Layer 2 Tunneling Protocol process (l2tpd) received an IP Control Protocol (IPCP) 'UP' message for the indicated tunnel and session that included the indicated IP address for a peer. The address was already used by another session, and the l2tpd process started closing down the session.
- **Type**: Error: An error occurred
- **Severity**: error
- **Cause**: -
- **Action**: -
- **Attributes**: peer-address
prefix-length
vrf
tunnel-id
session-id
- **Facility**: LOG_NEWS

## Found this message in the following releases:
- [Junos OS 26.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=26.2R1)
- [Junos OS 25.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=25.4R1)
- [Junos OS 25.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=25.2R2)
- [Junos OS 25.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=25.2R1)
- [Junos OS 24.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=24.4R2)
- [Junos OS 24.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=24.4R1)
- [Junos OS 24.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=24.2R2)
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=23.4R2)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=23.4R1)
- [Junos OS 23.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=23.2R2)
- [Junos OS 23.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=23.2R1)
- [Junos OS 22.4R3](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=22.4R3)
- [Junos OS 22.4R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=22.4R2)
- [Junos OS 22.4R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=22.4R1)
- [Junos OS 22.2R3](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=22.2R3)
- [Junos OS 22.2R2](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=22.2R2)
- [Junos OS 22.2R1](https://apps.juniper.net/syslog-explorer/?msg=L2TPD_SESSION_IP_DUPLICATE&sw=Junos%20OS&rel=22.2R1)