- Introduction
- Cover Page
- play_arrow Junos OS Release Notes for ACX Series
- play_arrow Junos OS Release Notes for cSRX
- play_arrow Junos OS Release Notes for EX Series
- play_arrow Junos OS Release Notes for JRR Series
- play_arrow Junos OS Release Notes for MX Series
- play_arrow Junos OS Release Notes for NFX Series
- play_arrow Junos OS Release Notes for QFX Series
- play_arrow Junos OS Release Notes for vRR
- Licensing
- Finding More Information
- Requesting Technical Support
- Revision History
Resolved Issues
Learn about the issues fixed in this release for SRX Series Firewalls.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
- Authentication and Access Control
- Chassis Clustering
- Content Security
- Flow-Based and Packet-Based Processing
- General Routing
- Interfaces and Chassis
- Intrusion Detection and Prevention (IDP)
- J-Web
- Platform and Infrastructure
- Routing Policy and Firewall Filters
- Routing Protocols
- User Interface and Configuration
- VLAN Infrastructure
- VPNs
Authentication and Access Control
Clearpass auth entry is getting deleted post successful ISSU. PR1732210
Flow-Based and Packet-Based Processing
Traffic loss is observed for the existing session if there is an update for the next-hop MAC address PR1755181
CPU utilization calculation is inaccurate. PR1756972
In a chassis cluster setup the flowd pause and SPC cards will fail. PR1761542
The GTPv2 create session response and packets might get dropped. PR1771176
The NSD process goes high on primary device when the Tenant System is configured. PR1776480
TCP sessions might get reset during MNHA traffic failover. PR1782444
The srxpfe process pause when ATP Cloud turned on. PR1783101
PMI sends packets to the wrong destination. PR1783595
Packets over GRE or IPIP or GRE(PMI) might not reach destination. PR1791633
The GTP-U packet destination port gets duplicated to the source port and subsequently discarded by policy. PR1798041
The commit might not go through when more than 128 vrf-groups for Layer 3 VPN configuration are configured. PR1802089
VXLAN session not created after committing FTI configuration on both devices. PR1807339
General Routing
Update microcode to version 0x3a or later upon upgrade to Junos OS release 21.4. PR1608045
High latency will be observed while pinging to peer device. PR1714620
Transition Junos OS kernel random number generator from hashing algorithm SHA-256 to SHA-512. PR1723499
Traffic drops might be observed when a BGP session comes up after the network flap. PR1732876
SRX4100 and SRX4200 accepts the datapath-debug configuration although it does not support it. PR1739559
ISSU upgrade pause on Junos OS release 23.2 onwards. PR1739673
On SRX1500, PEM alarms are displayed due to hardware limitations to read I2C. PR1751496
ARP resolution failure for lt interfaces is observed after cluster failover. PR1753191
VM host memory exhaustion results in image installation failure and brings down the Routing Engine (RE) during the upgrade. PR1755585
DNS proxy feature not working on logical tunnel interfaces. PR1760684
Application package version shows as 0 after upgrade to FreeBSD12. PR1766132
After the device reboot JSC stops accepting user connections. PR1766594
Inter and intra VLAN traffic drops. PR1770303
DHCP server not responding to some clients. PR1770332
RE switchover observed in SRX5000 line of devices when Ethernet switchports failure scenario on SCB. PR1774760
Features utilizing inactive routes might not work properly after the device reboot. PR1774975
Traffic drop observed right after boot up on SRX4600. PR1775083
IPsec tunnel behind NAT stops passing traffic when the NAT port number or IP address changes. PR1776216
The Wifi Mini-PIM card will be down upon upgrading the device. PR1776400
Interfaces stay down when 1 G SFP fiber transceiver connected to SRX380. PR1776656
Unexpected failover will be seen when there is communication loss between CP and SPU with web-authentication or web-redirect is configured. PR1780282
IP monitoring fail to install route after HA cluster reboot. PR1780326
Junos OS and Junos OS Evolved: Impact of Terrapin SSH Attack (CVE-2023-48795). PR1781732
Chassis alarm not present for if /var partition usage exceeds 100 percent. PR1784983
Validate result is in processing state for more than 5 minutes, when the configured validator port is in incorrect. PR1786432
The flowd process pause when the TLS 1.3 session ticket is received on SSL-I. PR1788673
The srxpfe or flowd process might pause while trying to update the path probe statistics. PR1790782
The ISSU fails in Layer 2 HA cluster deployment. PR1803376
The sxrpfe and fwauthd processes pauses sometimes. PR1804149
IPsec VPN is getting flapped due to warning messages on MIST controlled devices. PR1805493
Intrusion Detection and Prevention (IDP)
The flowd process pause when the device is rebooted. PR1786822
J-Web
J-Web UI cannot be launched. PR1766378
On the J-Web, edit icon under the interface is not working. PR1772267
Dynamic applications, Certificate Management, and NAT destination Page display errors. PR1784905
J-Web default session limits have been aligned with CLI default values. PR1788364
J-Web does not display address book entries properly after certain operations. PR1789466
Platform and Infrastructure
E2E packet capture will be corrupted. PR1761928
A flowd process pause if CP receives the packets due to some hardware memory issue. PR1775880
Traffic loss due to PPM not offloading LACP. PR1779749
The chassis cluster failover is seen post ISSU. PR1784775
Insufficient power alarm observed in SRX5000 line of devices. PR1787219
FPC reboot seen on SRX Series Firewalls with SPC3 card post RG failover. PR1793262
The dfwd process generates core files on node1 when performing ISSU upgrade to Junos OS release 23.1 and more. PR1794303
DNS and NTP might not be working as expected on Junos OS release 23.3 version above. PR1795068
Routing Protocols
OSPF route flap might be observed. PR1774715
User Interface and Configuration
SSH configuration changes do not come into affect on an existing outbound SSH client connection. PR1791814
VLAN Infrastructure
SRX Series Firewalls with transparent mode might fail to create a new flow session for multicast traffic when VLAN has l3-interface. PR1780182
Packet and byte counters in flow session result or traffic log are not correct for traffic uses Content Security or ALG services when SRX Series Firewalls are working as Layer 2 mode. PR1787772
VPNs
IPsec rekey fails when kilobyte based lifetime expires. PR1527384
ADVPN connection limit shortcut limitation not working as expected. PR1759738
In chassis cluster setup after failover AAMW status will remain in the requesting server certificate validation state on the new primary node. PR1765321
IPsec tunnels might not be established due to memory leak. PR1773276
In the MNHA scenario traffic drops are observed after failover. PR1777531
SCTP does not work correctly. PR1778106
The ikemd process pause when IKE traceoptions is configured. PR1780468
The kmd or iked process pause under rare circumstances. PR1783738
Traffic loss after deleting the traffic selector from the VPN configuration. PR1785346
Tunnel IKE and IPsec fails to come with Layer 2 HA and FIPS after switchover. PR1793207