Cisco 3845 ios download sfree

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Carlos Aguinaldo. Thanks in advance. Labels: Labels: Other Routing. I have this problem too. All forum topics Previous Topic Next Topic. Accepted Solutions. Joseph W. Hall of Fame Expert. In response to Carlos Aguinaldo. In response to Joseph W. RAM requirements, should be on the download page, per image. The migration path for this release is Affected devices would need to be configured to process SIP messages for these vulnerabilities to be exploitable.

Cisco has released free software updates that address these vulnerabilities. There are no workarounds for devices that must run SIP; however, mitigations are available to limit exposure to the vulnerabilities. Symptom After launching a flood of random IPv6 router advertisements when an interface is configured with ''ipv6 address autoconf'', removing the IPv6 configuration on the interface with ''no ipv6 address autoconf'' may cause a reload.

Other system instabilities are also possible during and after the flood of random IPv6 router advertisements. Conditions Cisco IOS is configured with ''ipv6 address autoconf''. Workaround Not using IPv6 auto-configuration may be used as a workaround.

Note Cisco IOS checks for the hop limit field in incoming Neighbour Discovery messages and packets received with a hop limit not equal to are discarded. Symptom Router drops valid packets, causing SIP call to fail. Workaround There is no workaround. We can also see crashes on the Standby router if the Active interface is brought up.

Symptom A Cisco router may face ping failure between provider and customer networks. Symptom With Reverse Route Injection RRI configured with the reverse-route command, if the crypto map is applied to a multi-access interface for example, ethernet , then egress traffic may fail when the router cannot populate an ARP entry for the crypto peer address.

Conditions The symptom could occur when the upstream device does not support proxy arping. Symptom The H. Symptom Certain crafted packets may cause a memory leak in the device in very rare circumstances.

Workaround Disable SIP if it is not needed. Symptom The VTP feature in certain versions of Cisco IOS software is vulnerable to a locally exploitable buffer overflow condition and potential execution of arbitrary code.

Conditions The packets must be received on a trunk enabled port, with a matching domain name and a matching VTP domain password if configured. The first vulnerability is in the translation of Session Initiation Protocol SIP packets, the second vulnerability in the translation of H. Each advisory lists the releases that correct the vulnerability or vulnerabilities detailed in the advisory.

Advisory Bundled Publication at the following link:. Repeated attempts to exploit this vulnerability could result in a sustained denial of service DoS condition. Cisco has released free software updates that address this vulnerability. The H. There are no workarounds to mitigate these vulnerabilities other than disabling H. Two separate Cisco Security Advisories have been published to disclose the vulnerabilities that affect the Cisco Unified Communications Manager at the following locations:.

Conditions When outgoing call is done using queuing-dn. Symptom Router crashes or spurious memory access can be seen. Symptom A Cisco UC crashes with memory corruption and frozen console access. Workaround Power-cycle the router. This symptom will not occur after the image has been upgraded. Symptom Router crash when configured as mobile router with IP phone attached. Conditions SRST router running This is the first image with sccp version 17 support for SRST.

Workaround Download the IP phone firmware to a version that does not use sccp version Conditions If there are more than 42 buttons configured on the phone, some line buttons may be missing after the phone fails over to the SRST. Workaround Downgrade the phoneload to sccp v16 or lower.

Symptom The IOS messages could be observed. Conditions The symptom could happen under normal condition. Workaround Remove the split tunnel configuration. Symptom FXO ports can get stuck in offhook state. Conditions The symptom is observed when FXO ports are members of a huntgroup where the first member port is disconnected or down. The trunkgroup has max-retry configured and rapid calls are connected and disconnected using the trunkgroup. Workaround Unconfigure max-retry.

Under each port, configure timeouts power-denial 0" so that disconnected ports are moved to offhook state and will not be hunted. The output is different compared to the value received from the same configuration on and Workaround Use reset instead of restart.

Symptom 69xx phones display toast message "From : XXXX" when it receives an incoming call for 6 seconds and then it displays the caller ID of the person. Conditions Observed for 8. Workaround Not seen for phone firmware 8. Symptom The Update method would have two call-info headers in certain call scenarios. This would cause the caller ID information to be "unknown" when the two headers were present.

Conditions Under certain call scenarios, the Update method would have two call-info headers, one for normal remotecc info and one for security status. Workaround There is no workaround but it is not service effecting. Caller ID would be unavailable in certain instances.

Symptom CME group pickup or pickup features do not work properly. Symptom A monitor phone can change the monitored dn SNR number via myphoneapp application. Conditions Using myphoneapp on a monitoring phone can change the SNR target of a monitored dn. Symptom AnyConnect Client version 2.

AnyConnect 2. This only pertains to the 2. Workaround Any of the following workarounds may be used:. The TCP sessions could be a telnet or H. Symptom SPAG2 phone would not register. Symptom No line or speed dial buttons are shown on the fallback skinny phone. Workaround Attach side cars to the phone. Workaround Issue clear crypto isa.

Symptom When using the copy ftp command to update IOS software issued on a router, it takes approximately 80 seconds before the file transfer begins. Conditions This is seen on a or series router, but is not seen on routers in other series, such as or Conditions This symptom is observed if a WAN outage happens when more than 40 calls are in progress.

Some random calls are then shown to be active when using the command show call active voice compact with Cisco IOS Release Symptom NULL is accepted as a name for class-maps and policy-maps.

No error message is displayed. Conditions Create a class-map or policy-map with "" or " " or any other similar combination as the name. Symptom Failed to get media source address for a stream in a DO call. Conditions Failed to get media source address for a stream in a DO call with rsvp.

Symptom When using mgcp dtmf-relay type nte-gw, a sniffer trace will reveal that digits are sent both in-band within the audio stream and out-of-band dtmf-relay. Because of this, double digits can be seen in Unity and MeetingPlace. Workaround Use mgcp dtmf-relay type out-of-band. Symptom If a certificate map is changed or added to the trustpoint, the pub key cache for the peers is not cleared. This makes it possible for a client which was connected in the past to reconnect again even if its certificate was banned by the certificate map.

Conditions Only seen with IE8. Workaround IE6 can be used as a workaround. Some pages on server A automatically does a silent login to server B and gets the information required to generate reports. When using IE8 this login information does not gets properly propagated to the backend server B which results in redirection request to the login page from server B. Symptom Tunnel sources get mixed up when tunnel interfaces are configured with serial subinterfaces as sources and the router is reloaded.

Conditions The symptom occurs only after a reload or when a saved configuration is applied to the running configuration. Conditions Phone A does a call blast by calling pilot number xxxxx. All the phones start ringing till time out 60 seconds then call lands on the final phone B. Phone B answers the call and gets connected, then it checks for called number at Phone A. The final phone's number should be displayed. But the pilot number is displayed.

Conditions The issue occurs when ICMP path jitter operation is configured on the router with invalid source address. Platform is supB with Workaround Configure the SLA operation with the right source address. Symptom Application set window scale factor does not get used by the accepted connection, instead the scale factor set by the global command ip tcp window XXXX is used.

Conditions ip tcp window XXXX configured to a higher than value. Connection has window scale enabled on both sides. Conditions The router runs into low-mem condition due to mem-fragmentation in certain voip-perf testing. It has a known work-around and is not a problem as such unless similar level of bursty traffic with the peculiar size of request is generated as used in testing.

Also, there is no support for iPhone and iPod safari browsers. Workaround Page is displayed but quality is poor. Symptom The called name is not displayed on the caller sccp phone when the call is forwarded to non-sccp endpoint ie. The called number is displayed correctly. Workaround Define the pool on the NAS or as a dynamic pool on the radius. Symptom When we load an FPM tcdf file on the router, a memory leak is seen. The command takes effect when issued, however, it is ignored after the router is rebooted and has to be issued again.

Conditions CME 7. Further Problem Description: The issue can be noticed after the router is reloaded and new phones are installed. They do not download the locale files. On the CME, the user locales configured can be verified via show telephony-service command.

For example, if we have Polish locale configured in the following way:. The correct show telephony-service output related to user locale should be:. Symptom Call forward all is being re-enabled on a dn after being removed. Conditions Night service is activated and then deactivated on the dn. Symptom Hitting the "answer" soft key drops an incoming call. Symptom C uut crashing while pvc comes up with auto qos voip configured.

Workaround If Auto qos is configured, there is no workaround. Symptom Router crashing when multiple pvcs are configured while pumping traffic. If the IP Phone does not answer and the call is forward to VM, the call is dropped with recover on timer expiry. Conditions The drop is caused after the call is setup between the gateway and the CUE. The CUE ignores these invites so the gateway drops the call.

Workaround Increase or remove the retry-invite option under the sip-ua config on the gateway. Symptom The has page 1 and page 2 button so total 24 speed dials can be configured on each The first expansion module displays the 24 users, 12 on page 1 and 12 on page 2. The second expansion module displays only 10 on page 1 and none on page 2. Conditions Load: 8.

Symptom Internally, one extra startmedia was sent out by CME. Conditions When one way whisper intercom is established. Conditions Issue is there only when PoE card is installed.

Workaround Remove the PoE card. Symptom DM communication cannot be setup when configure speed is Workaround Lower the speed. Conditions Observed this issue while unconfiguring shared-line in directory number voice register mode in Conditions TNP phones with firmware 8.

Workaround Wait for about a minute, and the port will automatically recover back to registered. Symptom VG endpoint does not connect to callback destination, once the callback destination is idle. Conditions Multi node cluster and VG endpoint is registered with node other then the first node in the cluster. Workaround Have VG endpoints register with first node. The activation of the callback is successful. What fails is when the callback destination becomes idle again and the VG endpoint gets notified ring.

After the VG endpoint goes offhook, the system should automatically connect to the Callback destination. This does not happen and VG endpoint gets silence. Symptom HLog softkey stops working. Conditions The symptom is observed under the following conditions:. Workaround Log in with the EM profile on the phone that was used to log out the huntgroup.

Workaround Configure transfer-pattern with the same length of the destination number. This causes a crash in fragmentation code. Workaround Set physical interface MTU to a higher appropriate value. Conditions IP phone part of a huntgroup and resets or power cycled when all huntgroup members logged out.

Workaround Log into huntgroup Hlog and log out. When using Single Number Reach SNR feature on an ephone-dn via the ephone-dn subcommand snr , the calling party to that phone when snr is active may not hear ringback indication. Call completes without issue but the ringback may not be heard by the calling party during the alerting stage.

Workaround Only known workaround is to disable the SNR feature. Conditions CDMA modem. Workaround Use modem. Symptom Traceback observed while configuring rel1xx require CLI. Conditions Traceback can be observed after configuring rel1xx require CLI with a string of 49 characters. Symptom The system prompt may be shown during Hlog out. Conditions When an agent or all agents log out, the logout message and system message may be shown every 30 seconds.

Conditions If the calls come in a PRI or FXO interface, and a user on an active call on the Octoline puts the call on hold while there is an incoming call, it will automatically answer the incoming call. Approximately 13 seconds later the second call is dropped. If you want to put a call on hold while a new call is coming in, you must wait until the incoming call stops ringing. Symptom Lost DM connection a few minutes after bidirectional traffic started. Conditions DM configured at speed K, Smartbit configured with bytes at rate pps.

Workaround Use lower speed k. Workaround Use a minimum MCR value no less than the granularity used by the router. Conditions In the configuration mode, this always happens. Symptom A Cisco router may crash when unconfiguring IPv6 nodes. The traceback is produced after configuring the no ipv6 unicast-routing command.

Conditions Problem is observed when NAT is enabled while router is configured to pass multicast traffic. Ingress interface contains analysis-module monitoring CLI command. Conditions PVC is configured with encapsulation aal5ciscoppp virtual-template 1. Symptom Software-forced reload occurs on Cisco router. It does not come up again. This vulnerability could allow valid users to retrieve or write to any file on the device's file system, including the device's saved configuration and Cisco IOS image files, even if the CLI view attached to the user does not allow it.

This configuration file may include passwords or other sensitive information. Devices that are not specifically configured to enable the Cisco IOS SCP server, or that are configured to use it but do not use role-based CLI access, are not affected by this vulnerability. Workaround There are no workarounds available for this vulnerability apart from disabling either the SCP server or the CLI view feature if these services are not required by administrators.

Workaround Have VG endpoints registered with first node. Further Problem Description : The activation of the callback is successful. Erasing the nvram filesystem will remove all configuration files! Bad configuration memory structure -- try rewriting. It is seen only when XOR and XTO are on the same side, if they are on different sides, the call transfer goes through fine.

Symptom Memory leaks are observed in "gk process" when memory lite is disabled. Conditions When no memory lite cli is configured from the global configuration mode. Conditions Configure memory lite cli from the global configuration mode. Symptom During the firmware upgrade on E modem using microcode reload command, it is found that the modem upgrade process will stop. Conditions Any firmware upgrade to a newer version fails.

Workaround Use the laptop based watcher to upgrade. Further Problem Description : There are two issues associated with the failures:. The current enzo only uses management channel instead of data channel. The locking code interferes with the firmware upgrade code during the upgrade process, thus the upgrade fails.

Observe the LED behavior. Conditions This happens whenever the call gets connected immediately after sending Alerting response or Progress response to the caller. Symptom A call is disconnected during call resume in a sip-h call. Conditions This symptom is observed under the following conditions:.

Received call resume ReInvite. Capabilities exchanged on H leg. Sent OLC. Symptom show call active voice command may display incorrect value for codecbytes. Symptom Outgoing of router FXO loop-start call randomly disconnected after far-end answered the call. Conditions The far-end is able to generate reverse-battery signal when called side answered the call. Also, supervisory disconnect was configured to either anytone or dualtone.

Workaround Use supervisory disconnect signal if possible. Symptom Call will be disconnected with 2 ipipgws. Conditions The media forking feature used to send stream to ASR server will fail. Workaround This problem is introduced by cvp based media forking feature in Pi Symptom Call over the FXO loop-start cannot be established since gateway's dsp detects reverse-battery signal.

Conditions The far-end is able to generate reverse-battery signal when called side is ringing. Also, supervisory disconnect is configured to either anytone or dualtone. Symptom CME version 7. Ephones register after the initial fail over to SRST and configuration is provisioned by the system, but the preferred codec used is Gulaw instead of Gr8. However if the system is rebooted after the initial fail over, the phones register with correct codec.

Workaround Reboot the system once the configuration ephone and ephone-dn is provisioned in the system. Show voip rtp connection shows one single ip address as the local address in the cube.

Conditions Occurs with single point to point or multipoint calls regardless of CTS model. This occurs only when the CTS resides in a different subnet than the interfaces on the cube and the configuration pass- thru content sdp is used in the voice service voip sip menu. Workaround If the network architecture or policy permits use the Cisco IOS bind command to bind media to single loopback address.

This address then can be advertised to connecting networks so that media is routable to the CUBE loopback. Further Problem Description : This issue does not affect the signalling side, just the media. The command pass-thru content sdp was introduced in YB to allow flows that require a G codec such as music on hold.

Removing this command can cause disconnects on Hold and Resume. Symptom When call is disconnected, shared-line resource is not released. They cannot register with CME. Conditions When the phone is configured. The router does not even synchronize with its own internal clock. Conditions Need to have both ntp master and ntp server configured. Workaround If configuring only "ntp master" or "ntp server", the router will synchronize. The FXS phone goes off-hook and back on-hook.

The IP phone then hangs up. The next call placed will not ring the FXS port. Place the call again and the FXS will ring properly again. Call comes into shared line. IP phone answers. While the line is in-use, the analog phone goes off-hook, then back on-hook.

IP phone ends the call. Conditions The issue is seen on Workaround For the first issue there is no known workaround other than placing another call to the DN after the issue is seen, or by not having the FXS phone go offhook during active IP phone calls.

Further Problem Description : Note that the second scenario is not a support solution. The call connected but audio path did not established. Conditions The call has to originate from a SIP phone thru gateway to another cme sccp endpoint and transfer back to a sccp endpoint of original cme then xfer again to another sccp endpoint within the cme.

After the cross cme call and 2 xfers, the error message shown and observed audio path failed. This results in a remote denial of service DoS condition on the affected device. Workarounds that mitigate this vulnerability are available and are documented in the workarounds section of the posted advisory. By manipulating the state of a TCP connection, an attacker could force the TCP connection to remain in a long-lived state, possibly indefinitely.

If enough TCP connections are forced into a long-lived or indefinite state, resources on a system under attack may be consumed, preventing new TCP connections from being accepted. In some cases, a system reboot may be necessary to recover normal system operation. To exploit these vulnerabilities, an attacker must be able to complete a TCP three-way handshake with a vulnerable system. This additional vulnerability was found as a result of testing the TCP state manipulation vulnerabilities.

Cisco has released free software updates for download from the Cisco website that address these vulnerabilities.

Workarounds that mitigate these vulnerabilities are available. Symptom Memory leak was found after voice stress testing on a Cisco Testing was performed for 2 hours, and call duration was 60 seconds.

Symptom During 7xi2b monitoring c10k crashed at igmp-process. Note that WFQ is the default for some types of dialer interfaces. Workaround Remove "police cir percent" from child queuing policy "cbwfq- sip". Alternate Workaround: Use a different child-policy with the same.

Define a second policy-map, say "cbwfq-sip1", with the same configuration. Symptom A policy with unsupported queuing features is allowed to attach to sessions. It may cause potential issues that require a reload to recover. Further calls attempted through this port once in this state will result in the following error messages being displayed:. Jan 8 Workaround Once in this state, the router will need to be reloaded to recover.

The use of this command for stcapp controlled FXS ports does not seem to provide any benefit but can lead to the port getting into this hung state. However, when the "software mode"is used, meaning when the two member links 2 T1s are across two different PSs, then the downstream line rate drops down to 2 Megs the most.

Symptom Unable to create sessions and ACLs. Symptom SCCP phone can't act as conferencing controller. Workaround The problem doesn't exists if there is no back-to-back NAT setup. Symptom Trace back is shown when show crypto session is issued.