MikroTik RouterOS SMIPS Firmware 6.41 RC 37 Download

Posted at December 19, 2024 by PCI-DB Team

MikroTik RouterOS SMIPS Firmware 6.41 RC 37 Description

Important note!!! Backup before upgrade!

- RouterOS (v6.40rc36-rc40 and) v6.41rc1+ contains new bridge implementation that supports hardware offloading (hw-offload).
- This update will convert all interface "master-port" configuration into new bridge configuration, and eliminate "master-port" option as such.
- Bridge will handle all Layer2 forwarding and the use of switch-chip (hw-offload) will be automatically turned on based on appropriate conditions.
- The rest of RouterOS Switch specific configuration remains untouched in usual menus for now.
- Please, note that downgrading to previous RouterOS versions will not restore "master-port" configuration, so use backups to restore configuration on downgrade.

What's new in 6.41rc37:

- bridge - general development of hw-offload bridge implementation (introduced in v6.40rc36);
- bridge - initial support for "/interface list" as a bridge port (CLI only);
- fetch - accept all HTTP 2xx status codes;
- ike2 - fixed initiator DDoS cookie processing;
- ike2 - fixed responder DDoS cookie first notify type check;
- lte - fixed modem initialization after reboot;
- ntp-client - properly start NTP client after reboot if manual server IP is not configured;
- sfp - fixed OPTON module DDM information readings;
- wireless - added "etsi1" regulatory domain information;
- wireless - improved WPA2 key exchange reliability;
- wireless - updated "norway" regulatory domain information;

Other changes since 6.40.3:

- bridge - implemented software based vlan-aware bridges;
- switch - "master-port" conversion into a bridge with hardware offload "hw" option;
- address - show warning on IPv6 address when acquire from pool has failed;
- arp - fixed invalid static ARP entries after reboot on interfaces without IP address;
- arp - properly update dynamic ARP entries after interface related changes;
- bridge - added initial support for hardware "igmp-snooping" on CRS1xx/2xx;
- bridge - automatically turn off "fast-forward" feature if both bridge ports have "H" flag;
- bridge - changed "Host" and "MDB" table column order;
- bridge - fixed "fast-forward" counters;
- bridge - fixed "R" state for bridge interfaces on x86 and CHR installations (introduced in v6.41rc12);
- bridge - fixed ARP setting (introduced in v6.40rc36);
- bridge - fixed connectivity issues when there are multiple VLAN interfaces on bridge;
- bridge - fixed multicast forwarding (introduced in v6.40rc36);
- bridge - implemented dynamic entries for active MST port overrides;
- bridge - implemented software based "igmp-snooping";
- bridge - implemented software based MSTP;
- bridge - removed "frame-types" and "ingress-filtering" for bridge interfaces (introduced in v6.40rc36);
- bridge - show "admin-mac" only if "auto-mac=no";
- bridge - show bridge interface local addresses in the host table;
- btest - improved reliability on Bandwidth Test when device`s RAM is almost full;
- capsman - added "vlan-mode=no-tag" option;
- capsman - return complete CA chain when issuing new certificate;
- certificate - fixed import of certificates with empty SKID;
- certificate - fixed SCEP "get" request URL encoding;
- certificate - show "Expired" flag when initial CRL fetch fails;
- chr - added KVM memory balloon support;
- chr - added suspend support;
- console - do not stop "/certificate sign" process if console times out in 1 minute;
- crs1xx/2xx - fixed 1 Gbps forced mode for several SFP modules;
- crs317 - added initial support for HW offloaded MPLS forwarding;
- crs317 - added L2MTU support;
- crs326 - fixed packet processing speed on switch chip if individual port link speed differs;
- crs3xx - added port ingress and egress rate limiting;
- crs3xx - improved packet processing in slowpath;
- CRS3xx - switch VLAN configuration integrated within bridge VLAN configuration with hw-offload;
- defconf - fixed RouterOS default configuration (introduced in v6.40.3);
- dhcp - fixed DHCP services failing after reboot when DHCP option was used;
- dhcp - fixed unresponsive DHCP service caused by inability to read not set RAW options;
- dhcp - require DHCP option name to be unique;
- dhcpv4-client - allow to use DUID for client as identity string as the option 61;
- dhcpv6 client - added IAID check in reply;
- dhcpv6-client - fixed IA check on solicit when "rapid-commit" is enabled;
- dhcpv6-client - ignore unknown IA;
- dhcpv6-client - require pool name to be unique;
- e-mail - auto complete file name on "file" parameter (introduced in v6.40);
- e-mail - do not show errors when sending e-mail from script;
- eoip - made L2MTU parameter read-only;
- ethernet - removed "master-port" parameter;
- export - fixed interface list export;
- export - fixed wireless "ssid" and "supplicant-identity" compact export;
- hotspot - fixed missing "/ip hotspot server profile" if invalid "dns-name" was specified;
- hotspot - improved user statistics collection process;
- ike1 - release mismatched PH2 peer IDs;
- ike1 - remove PH1 and PH2 when "mode-config" exchange fails;
- ike2 - check identities on "initial-contact";
- ike2 - use peer configuration address when available on empty TSi;
- interface - added "/interface reset-counters" command (CLI only);
- interface - added option to join and exclude "/interface list" from one and another;
- interface - fixed corrupted "/interface list" configuration after upgrade;
- ippool6 - try to assign desired prefix for client if prefix is not being already used;
- ipsec - added DH groups 19, 20 and 21 support for phase1 and phase2 (CLI only);
- ipsec - allow to specify "remote-peer" address as DNS name;
- ipsec - kill PH1 on "mode-config" address failure;
- ipsec - renamed "firewall" argument to "notrack-chain" in peer configuration;
- ipv6 - add dynamic "/ip dns" server address from RA when RA is permitted by configuration;
- ipv6 - fixed IPv6 address request from pool (introduced in v6.41rc1);
- l2tp-server - fixed PPP services becoming unresponsive after changes on L2TP server with IPSec configuration;
- lcd - fixed "flip-screen=yes" state after reboot;
- lcd - fixed unresponsive LCD (introduced in v6.41rc15);
- log - added "bridge" topic;
- log - fixed "unknown" interface name in log messages;
- log - optimized "poe-out" logging topic logs;
- lte - added "/interface lte apn" menu (Passthrough requires reconfiguration) (CLI only);
- lte - added Passthrough support (CLI only);
- lte - added support for ZTE ME3630 E1C with additional "/port" for GPS usage;
- lte - added Yota non-configurable modem support;
- lte - automatically add "/ip dhcp-client" configuration on interface;
- lte - changed default values to "add-default-route=yes", "use-peer-dns=yes" and "default-route-distance=2";
- lte - do not reset modem when it is not possible to access SMS storage;
- lte - integrated IP address acquisition without DHCP client for wAP LTE kit-US;
- lte - properly recognize USB devices under "/system resource usb" (introduced in v6.41rc12);
- modem - added initial support for Alcatel IK40 and Olicard 500;
- ospf - fixed OSPF v2 and v3 neighbor election;
- ppp - added support for Sierra MC7750, Verizon USB730L;
- ppp - fixed missing PPP client interface after reboot (introduced in v6.41rc);
- ppp - fixed serial port loading (introduced in v6.41rc);
- ppp - fixed situation when part of PPP configuration was reset to default values after reboot;
- pppoe - fixed invalid PPPoE server or client after reboot or "interface" edit (introduced in v6.41rc9);
- pppoe-server - fixed situation when PPPoE servers become invalid on reboot;
- rb931-2nd - fixed startup problems (requires additional reboot after upgrade);
- routerboard - fixed "/system routerboard upgrade" for CRS212-8G-4S;
- sfp - fixed SFP interface power monitor when bad SFP DDMI information is received;
- sfp - fixed temperature readings for various SFP modules;
- sftp - added functionality which imports ".auto.rsc" file or reboots router on ".auto.npk" upload;
- sniffer - fixed VLAN tag reporting for TX packets (introduced 6.41rc14);
- snmp - fixed "/system license" parameters for CHR;
- snmp - fixed "ifHighSpeed" value of VLAN, VRRP and Bonding interfaces;
- snmp - fixed bridge host requests on devices with multiple bridge interfaces;
- snmp - fixed "/caps-man registration-table" uptime values;
- tile - improved reliability on MPLS package processing;
- tile - improved hardware encryption processes;
- traceroute - improved "/tool traceroute" results processing;
- ups - fixed duplicate "failed" UPS logs;
- userman - fixed unresponsive RADIUS server (introduced in v6.40.3);
- vlan - do not allow VLAN MTU to be higher than L2MTU;
- webfig - improved reliability of login process;
- winbox - added "notrack-chain" setting to IPSec peers;
- winbox - do not show duplicate "Template" parameters for filter in IPSec policy list;
- winbox - do not show duplicate filter parameters "Published" in ARP list;
- winbox - fixed bridge port sorting order by interface name;
- winbox - show warnings under "/system routerboard settings" menu;
- wireless - added "allow-signal-out-off-range" option for Access List entries (CLI only);
- wireless - fixed rate selection process when "rate-set=configured" and NV2 protocol is used;
- wireless - improved reliability on "rx-rate" selection process;
- wireless - log "signal-strength" when successfully connected to AP;
- wireless - pass interface MAC address in Sniffer TZSP frames;
- wireless - updated "united kingdom" regulatory domain information;

About Router Firmware:

Before you consider downloading this firmware, go to the system information page of the router and make sure that the currently installed version isn't either newer or matching this release.

Due to the large variety of router models and different methods for upgrading the device, it is highly recommended that you read and, above all, understand the installation steps before you apply the new firmware, even if you are a power user.

In theory, these steps shouldn't be much of a hassle for anyone, because manufacturers try to make them as easy as possible, even if they don't always succeed. Basically, you must upload the new firmware to the router through its administration page and allow it to upgrade.

If you install a new version, you can expect increased security levels, different vulnerability issues to be resolved, improved overall performance and transfer speeds, enhanced compatibility with other devices, added support for newly developed technologies, as well as several other changes.

If you're looking for certain safety measures, remember that it would be best if you perform the upload using an Ethernet cable rather than a wireless connection, which can be interrupted easily. Also, make sure you don't power off the router or use its buttons during the installation, if you wish avoid any malfunctions.

If this firmware meets your current needs, get the desired version and apply it to your router unit; if not, check with our website as often as possible so that you don't miss the update that will improve your device.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.

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