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This is the documentation for the 23.06 version. Looking for the documentation of the latest version? Have a look here.

TNSR 23.02.1 Release Notes¶

About the TNSR 23.02.1 Release¶

This is a maintenance release for TNSR software version 23.02 with bug fixes.

General¶

Changes¶

Changes in TNSR software version 23.02.1

Dataplane¶

Fixed: IPv6 Neighbor Discovery starts to fail until Linux neighbor cache is cleared [9135]
Fixed: VPP crash from process node scheduling and expiration issues [9339]
Fixed: VPP hangs resulting in SNMP segfault [9665]

Known Issues¶

Known Issues in TNSR software version 23.02

BFD¶

Unable to setup delayed option for an existing BFD session via REST [2709]
IPv6 session is not restored when virtual direct link gets disabled/enabled [4916]
TNSR cannot commit configuration candidate database loaded from a file if it contains a BFD session for an interface that does not exist [7150]
BFD configuration inconsistently displayed [9425]
No ping response from peer when BFD session is down [9447]
IPv6 BFD sessions are intolerant of dataplane restart [9475]

Bridge¶

Bridge domain ARP entries cannot be displayed via CLI [2378]
Bridge domain ARP entries cannot be removed via CLI [2380]
Bridge domain mac-age value cannot be removed via CLI [2381]
Bridge domains and split-horizon groups are not functioning properly [5500]
Bridging fails with virtual interfaces as members [7762]

CLI¶

CLI does not always return from a shell prompt [2651]
Deleting the startup configuration database does not fully remove the active configuration [3723]
Specifying interface to traceroute requires root privileges [5376]
Input validation of unbound message cache slabs value does not work as expected [5472]
CLI and RESTCONF behavior are different for no bgp default ipv4-unicast [6303]
RIP information does not contain a legend for kernel routes [7230]
The cli autocompletion when launching BGP in several VRF’s suggests BGP neighbors not from their VRF [9316]
show host interface command allows repeated use of identical parameters [9969]

Counters¶

Contradictory output of detailed counters on bond interface in ‘broadcast’ mode [8351]

DHCP Server¶

CLI offers to delete mandatory variable in DHCP server subnet configuration [5240]
DHCP4 Kea config-file output shows VPP TAP interface names in its configuration instead of TNSR interface names [5264]
Unable to setup a custom DHCP option with certain data types in the record [5299]

DNS¶

show system output does not contain DNS resolver parameters [5397]

Dataplane¶

Link state is always up when using e1000 network drivers [2831]
Cannot create rx-queues for interfaces on KVM and VirtualBox [3674]
Static routes with an interface as the next hop using resolve-via-attached appear to break dataplane ARP [5259]
TNSR on AWS does not pass traffic when using the igb_uio or uio_pci_generic driver [7015]
Interrupt rx-mode does not function on some hardware [9039]
IPv6 Neighbor Discovery starts to fail until Linux neighbor cache is cleared [9135]
SEGV in VPP [9312]
VPP crashes while initializing VMXNET3 interfaces using default configuration [10064]

General¶

Non-root users cannot access the FRR log file [4826]
Unable to specify TNSR interface as a source in ping and traceroute commands via REST [5605]
Startup entry is not created in configuration history log [7400]
Cannot commit a candidate configuration database if a tap interface is present [7458]
Incorrect error message is shown when removing ABF policy attached to an interface [9530]

Host¶

Cannot configure the default gateway for host namespace via TNSR CLI [3702]
VRF interface for a custom route table persists in the operating system after restarting services [4866]
dns-resolver configured for host namespace remains in system after removing from TNSR [7830]
dns-resolver configuration values for host namespace remain in resolv.conf after restarting TNSR [7975]
Missing host interfaces are not handled properly by TNSR [10272]

IPsec¶

IPsec daemon does not support using non-default VRF entries [7266]
Cannot disable IPsec dpd-interval option [8012]
Cannot configure IPsec with manual key type [8396]
Error when creating IPsec tunnel via RESTCONF with tunnel-enable set [8432]
IPsec tunnel without a child SA does not appear in IPsec state data [8433]

Installation¶

TNSR installer fails if interfaces are configured with IP addresses but have no Internet connectivity [7807]

Interfaces¶

VLAN subinterfaces do not work with virtio network drivers on KVM [2189]
Unable to set IPv6 link-local address on an interface [2394]
Unable to create subinterface with dot1q any tag [2652]
Invalid routes remain in table when next-hop IP address is no longer directly connected [3161]
Reassembly timeout is not working when full IP reassembly is configured [3269]
Shallow virtual reassembly cannot be disabled when it is implicitly enabled by other features [3361]
Second fragment of a packet is not virtually reassembled when max-reassemblies is set to 1 [3384]
Unable to delete a MAC address explicitly set for the TNSR side of a TAP interface [4433]
XG-1541 link speed auto-negotiation incorrect with direct connected interfaces [5323]
Errors indicate TNSR is attempting to assign a MAC address to IPsec ipipX interfaces [6285]
L3 packets can be sent from bridged interfaces [6975]
Unable to setup DPDK uio_pci_generic driver on XG-1541 [6981]
TAP instance tcpdump method only captures received packets [7137]
Unable to delete a non-existent multicast-interface from VXLAN tunnel configuration [7278]
Pings between IPIP interfaces become intermittent when BGP is applied to them [7392]
Interface IP address is shown in IPv4 route table instead of associated subnet [7511]
Setting a new MTU value does not affect the MRU for IPv6 packets [8245]
Unable to delete link MTU from an interface when default MTU is set less than 1280 [8837]
Evaluate presence of interface configuration items for loopback interfaces [9380]
Link state of a bond interface does not follow the link state of the underlying interfaces [10093]
Interfaces disappear at boot until dataplane is restarted with vfio-pci driver [10280]

Memif¶

Unable to connect to memif interface using default socket [4448]

NACM¶

It is possible to remove an NACM group used in a rule list [10115]
NACM rule paths created via RESTCONF are not validated and can lead to broken configuration databases [10116]

NAT¶

Twice-NAT does not work [1023]
1:1 NAT drops packets with ttl=2 from inbound interface [2849]
Full IP reassembly does not work with MAP [3386]
MAP-T adds bogus zeroes when translating short IPv4 to IPv6 [3460]
NAT pool route table option only available when specifying a range [3628]
Packets larger than 2034 bytes are dropped when performing IPv4 to IPv6 MAP translation [3742]
MAP-T domain usage causes IPv6 traffic class value to always be copied from IPv4 ToS value [3774]
TCP MSS value is not applied to IPv4 packets when IPv6 to IPv4 decapsulation is performed on MAP-E BR [3783]
MAP does not relay IPv6 ICMP error messages to IPv4 [3809]
NAT static mappings for ICMP do not work [4373]
NAT static mappings for TCP/UDP protocol on any port result in translation for port 0 instead [4384]
NAT static mappings assume external port 0 when port is omitted [4432]
Packets not destined to a NAT pool are dropped when NAT simple mode is configured with out2in-dpo option [4927]
Full IPv4 reassembly doesn’t work with NAT endpoint-independent mode [5476]
Cannot increase NAT Sessions per thread past ~1e6 [6550]
Dataplane SIGSEGV crash and backtrace when exceeding NAT session limit [6551]
Expired NAT sessions become active again when increasing the timeout value [7090]
NAT sessions do not expire in endpoint-independent mode [7098]
Cannot commit a clean candidate configuration database if NAT static mapping is configured [7286]
Unable to establish NAT hairpin connection [8014]
NAT in endpoint-dependent mode drops packets when it cannot identify the correct worker thread [8262]
Routing through NAT in EI mode doesn’t work if NAT outside interface is IPSec tunnel [8333]
VPP can return incomplete session data for a user when NAT forwarding is enabled with multiple worker threads [9510]
Traffic from TNSR itself sourced from inside NAT interface does not get NAT applied when egressing via NAT outside interface [9706]

NTP¶

NTP does not properly handle IPv6 restrictions [4626]
Delay in CLI display of NTP configuration when NTP has noquery set [6818]
Interfaces in the TNSR NTP configuration are not validated when generating the NTP daemon configuration [7153]

Neighbor / ARP / NDP¶

Packet loss during ARP transactions [2868]
The MAC address of a static IPv6 neighbor cannot be changed [4454]

PKI¶

PKI certificate entries do not include Key Usage/Extended Key Usage properties and may be rejected for some purposes when SANs are present [10018]

RESTCONF¶

Adding a user via RESTCONF requires a password even when providing an ssh key [2875]
RESTCONF “pretty-printed” JSON contains incorrect indentation [3521]
OSPF interfaces are not validated when configured via RESTCONF [3528]
Cannot change GRE tunnel type to or from ERSPAN via RESTCONF [4353]
Response of /restconf/data/ and /restconf/data/netgate-interface:interfaces-state/ does not include any of *-table [5399]
RESTCONF allows configuring dataplane options for non-existent devices [5748]
RESTConf route-state response does not contain actual state data [7115]
RESTConf dataplane service does not work on interfaces in a non-default VRF [7265]
History version count does not match the count of REST configuration requests if they are sent without a delay [7440]
Unable to clear trace filters over RESTCONF [9476]
RESTCONF daemon exits when certain clients fail to validate the server certificate [10112]

Routing¶

Changing default metric for OSPF server does not result in update on other routers [2586]
OSPF RIB is not updated when the ABR type is changed between standard and shortcut [2699]
BGP updates for new prefixes ignore the advertisement-interval value and are sent every 60 seconds [2757]
RIP “timeout” timer does not work [2796]
ttl-security hops value can be set when ebgp-multihop is already configured [2832]
extended-nexthop capability isn’t being negotiated between IPv6 BGP peers [2850]
Unable to verify received prefix-list entries via CLI when using ORF capability [2864]
BGP network backdoor feature isn’t working without service restart [2873]
BGP next-hop attribute aren’t being sent unmodified to the eBGP peer when route-server-client option is configured [2940]
Unable to verify dynamic BGP peer information from TNSR CLI [3044]
Unable to delete OSPF3 config for an interface [3481]
TNSR does not prevent creating static routes for directly connected networks [3813]
OSPF conditional default route injection does not work [3846]
Unable to verify received routes when high number of routes received via BGP [3918]
TNSR allows OSPF network type for a loopback interface, which is rejected by FRR [4800]
Reverting to the startup configuration doesn’t restore packet forwarding for BGP over IPsec prefixes [5321]
RIP route-map-filter option does not filter routes [5910]
Unable to disable IPv4 AF without BGP service restart [6393]
BGP failover logs “Failed to delete neighbor” error from linux-cp [6400]
OSPF virtual-link authentication does not work [6601]
Unable to remove OSPF virtual-link configuration [6962]
OSPF can announce interfaces from other VRFs on initial configuration [7002]
Cannot add a static recursive route [7010]
VPP crashes on applying custom VRF to loopback interface used in OSPF [7056]
Creating route-map, prefix-list, or access-list entries takes longer than expected [7068]
Cannot disable logging of adjacency changes for OSPF6 if detail option is set [7097]
Routes that exactly overlap an interface link route are accepted by CLI but are problematic [7101]
OSPF neighbor adjacency is established in wrong VRF in VirtualBox [7144]
Interfaces in the TNSR RIP configuration are not validated when generating the FRR RIP daemon configuration [7155]
Interfaces in TNSR route-map entries are not validated when generating the FRR daemon configurations [7156]
Interfaces in the TNSR OSPF configuration are not validated when generating the FRR OSPF daemon configuration [7177]
Interfaces in the TNSR BGP configuration are not validated when generating the FRR BGP daemon configuration [7218]
Dynamic routing protocols lose static routes after link they resolve through goes down and then comes up [7357]
OSPF logging for some options does not work if logging level is set explicitly [7411]
BGP debug option updates in <peer> does not filter messages for selected peer [7476]
BGP session does not become active after interface goes down and recovers [7501]
OSPF6 continues to redistribute connected/kernel routes resolved via interface with linkdown status [7624]
BGP address family neighbor option maximum-prefix restart does not work correctly [7709]
Malfunction of BGP process after entering maximum-prefix restart without the basic maximum-prefix limit command [7748]
OSPF6 does not advertise loopback address to another area if the loopback is configured first [7757]
Routes remain in table after interface with VRRP configured is marked down until dataplane is restarted [7790]
OSPF stops working after configuring mtu-ignore option on an interface [8085]
Routes do not match by route-map if match criteria is set to ip next-hop ... [8148]
Output of show conf differs for route-map [8375]
Route map source-protocol match condition matches routes from any source [8381]
redistribute table configuration in RIP/OSPF does not affect route redistribution [8390]
Cannot change distance for one BGP prefix [8690]
Forwarding address from OSPF6 LSA5 is not installed as the next hop for the route [8732]
BGP bestpath med missing-as-worst command does not function correctly [8805]
OSPFv3 repeatedly drops connection on AWS when redistribution is configured [8822]
Route Map with IPv6 Access List does not filter redistributed OSPF6 routes [8857]
Route-Map set src option does not function correctly [9045]
show route displays no routes for a VRF until it is placed on an interface [9073]
FRR cannot connect to RPKI cache server if a route to it does not exist in default VRF [9146]
The redistribute kernel and import vrf BGP options do not work at the same time if the static route is redistributed with an output interface in a third-party VRF [9147]
Applying a subsequent route map with import vrf cancels a previous applied route map [9156]
A route map applied to the import vrf option using a prefix list does not work correctly [9235]
Changing BGP as-number in default VRF leads to the termination of the import of routes to another VRF [9244]
Cannot change an interface to a new VRF when BGP is configured to import the current VRF [9259]
Changing an interface VRF does not stop importing routes from the previous VRF [9298]
RPKI expire-interval option does not get put into the FRR running configuration after restarting BGP/dataplane [9331]
Route maps with match rpki * conditions do not get re-applied when RPKI status of routes changes [9439]
TNSR does not prevent removing extended and large community lists referred by route maps [9499]
set community command disappears from FRR configuration without warning after setting an invalid community [9508]
Suppression of specific routes when applied to an aggregated route of a route map containing set aggregator as <asn> ip address <ipv4-address> command [9547]
Deprecation warning from FRR OSPF6 for interface area syntax [9783]
BGP soft-reconfiguration inbound option does not work for IPv6 peers [10086]
BGP selects incorrect path to a network when changing bestpath rules [10210]
zebra causes out-of-memory error on AWS when restarting TNSR after receiving 1.5-2 million prefixes via BGP [10273]

SNMP / IPFIX / Prometheus¶

Prometheus filters with non-alphanumeric characters can cause HTTP requests to fail [5467]
Prometheus filters containing spaces cannot be removed [5470]
SNMP does not work on interfaces in a non-default VRF [7261]

SPAN¶

Span config disappears/appears when repeatedly restarting dataplane [6526]
Incorrect error message when requesting SPAN info from a missing interface [7209]
SPAN mirroring can not be disabled [7560]
SPAN does not work correctly for outbound packets on VLAN subinterface [7801]

Static Routes¶

Static route description is not showing up in show commands or REST state data [5478]
Static route overwrites kernel route in the operating system routing table [7215]
Transit traffic goes to an interface with inactive link when there is another (active) path [8041]

Tunnel Protocols¶

Changes to an existing VXLAN tunnel configuration do not apply until the dataplane is restarted [1778]
TNSR IPv6 interface address does not appear in traceroute when next-hop is IPsec tunnel interface [5178]
VxLAN with multicast destination does not pass traffic [6491]
GRE interface configuration remains in running config after changing GRE tunnel ID [7050]
Configuring option route-table in a WireGuard peer does not affect next-hop lookup of the endpoint address [8070]
VPP processes packets received on disabled tunnel interfaces [8111]
WireGuard tunnel interfaces still function with a tunnel next-hops entry having an incorrect next-hop-address [8256]
Tunnel next-hop entries do not function in non-default VRFs [8653]
Incorrect WireGuard tunnel next-hop after roaming [8764]
Changing crypto asynchronous dispatch-mode greatly increases the latency between IPsec tunnel IP addresses [10030]
IPIP interface loses attached ACLs when DNS resolution of the remote endpoint changes [10171]

Updates¶

Router upgraded to 22.10-2 will not start without an IKE prf entry [9368]

VRRP¶

VRRP accept-mode may cause invalid ARP requests, leading to loss of connectivity during failover [9881]

clixon¶

log_upgrade does not print cxobj paths correctly in tnsr-upgrade.log [4747]
clixon_backend exhausts memory while displaying high amount of routes [5226]
Configuration upgrade does not run when loading configuration via history [6968]
Unable to set up a password that starts and finishes with a double quotation mark [7571]
Unable to set up a password that contains a backslash symbol [7572]