- Decrypt Mac Verify Failed For Connection Id Card
- Decrypt Mac Verify Failed For Connection Idm
- Decrypt Mac Verify Failed For Connection Id Password
- Decrypt Mac Verify Failed For Connection Identity
Description of problem: When using OpenSWAN and IPSEC tunnel VPN the system establishes a VPN however no traffic is received or sent. There is no complaint from the OpenSWAN but the cisco router complains off CRYPTO-4-RECVDPKTMACERR: decrypt: mac verify failed for connection Our Cisco and OpenSWAN configurations are like so: conn tunnelipsec authby=. Gossamer Mailing List Archive. I had the same problem a few weeks ago with a 3845. Initially we thought we were hitting an IOS Bug but in the end of the day, the.
Similar Messages:
Cisco Switching/Routing :: 1811W - Packets Not Getting Encrypt And Decrypt IPSEC
Dec 14, 2012I have 2691 Router conencted to Internet and it is doing Nat. This connects to 3550A Switch which has connection to 1811W Router.
I setup VPN between 1811W and 3550A. 3550A has connection to 2691 via ospf.
OSPF is running between 1811w and 3550A.
1811
1811w# sh crypto isakmp sa
IPv4 Crypto ISAKMP SA
[Code]...
I setup VPN between 1811W and 3550A. 3550A has connection to 2691 via ospf.
OSPF is running between 1811w and 3550A.
1811
1811w# sh crypto isakmp sa
IPv4 Crypto ISAKMP SA
[Code]...
Cisco VPN :: RV042 Router Doesn't Encrypt But Does Decrypt
Mar 7, 2013I have a problem in my IPSec tunnel. One of the routers (Cisco 861) doesn't encrypt the packets but does decrypt the incoming ones from the remote peer (RV042). In the access-list for the wan interface I deny the traffic between the subnets and in the vpn access-list I permit the traffic.
Cisco VPN :: ASR901 Support IPsec - Cannot Encrypt ICMP Packet Back
Apr 25, 2013I'm trying to setup a GDOI based IPsec connection between a cisco AS901 (advanced Metro lic - asr901-universalk9-mz.152-2.SNI ) and a 7606-S.What I see is that the ASR901 is capable of decrypting the IPsec packet but I cannot encrypt the ICMP packet back, so the question is if the AS901 can support IPsec in software. What I could not find in the docs on CCO. [code]
Cisco Firewall :: ASA 5540 - IPSec Tunnel / ASA Refuses To Encrypt Traffic But Decrypts It
May 31, 2012This has to be the most weirdest issue I have seen since the past year on my ASA. I have an ASA 5540 running the 8.4(2) code without any issues until I stumbled upon this problem last week and I have spent sleepless nights with no resolution! So, take a deep breath and here is a brief description of my setup and the problem:
A Simple IPSEC tunnel between my ASA 5540 8.4(2) and a Juniper SSG 140 screen OS 6.3.0r9.0(route based VPN)
The tunnel comes up without any issues but the ASA refuses to encrypt the traffic but decrypts it with GLORY! below are some debug outputs, show outputs and a packet tracer output which also has an explanation of my WEIRD NAT issue:
My setup - ( I wont get into the tunnel encryption details as my tunnel negotiations are **** perfect and comes up right off the bat when the ASA is configured as answer only)
CISCO ASA - IPSec networking details
LOCAL NETWORK - 10.2.4.0/28
REMOTE NETWORK - 192.168.171.8/32
JUNIPER SSG 140 - IPSec networking details
PROXY ID: LOCAL NETWORK - 192.168.171.8/32
REMOTE NETWORK - 10.2.4.0/28
HOST NAME# sh cry ipsec sa peer <JUNIPER SSG PEER>
peer address: <JUNIPER SSG PEER>
[code]..
As you can see, there is no echo reply packet at all as the packet is not being encapsulated while it is being sent back. I have been going mad with this. Also, this is a live production multi tenant firewall with no issues at all apart from this ****** ip sec tunnel to a juniper!!
Also, the 192.168.10.0/24 is another IP Sec tunnel remote network to this 10.2.4.0/28 network and this IP SEC tunnel has a similar Juniper SSG 140 screen os 6.3.0r9.0 at the remote end and this woks like a charm without any issues, but the 171 is not being encrypted by the ASA at all.
A Simple IPSEC tunnel between my ASA 5540 8.4(2) and a Juniper SSG 140 screen OS 6.3.0r9.0(route based VPN)
The tunnel comes up without any issues but the ASA refuses to encrypt the traffic but decrypts it with GLORY! below are some debug outputs, show outputs and a packet tracer output which also has an explanation of my WEIRD NAT issue:
My setup - ( I wont get into the tunnel encryption details as my tunnel negotiations are **** perfect and comes up right off the bat when the ASA is configured as answer only)
CISCO ASA - IPSec networking details
LOCAL NETWORK - 10.2.4.0/28
REMOTE NETWORK - 192.168.171.8/32
JUNIPER SSG 140 - IPSec networking details
PROXY ID: LOCAL NETWORK - 192.168.171.8/32
REMOTE NETWORK - 10.2.4.0/28
HOST NAME# sh cry ipsec sa peer <JUNIPER SSG PEER>
peer address: <JUNIPER SSG PEER>
[code]..
As you can see, there is no echo reply packet at all as the packet is not being encapsulated while it is being sent back. I have been going mad with this. Also, this is a live production multi tenant firewall with no issues at all apart from this ****** ip sec tunnel to a juniper!!
Also, the 192.168.10.0/24 is another IP Sec tunnel remote network to this 10.2.4.0/28 network and this IP SEC tunnel has a similar Juniper SSG 140 screen os 6.3.0r9.0 at the remote end and this woks like a charm without any issues, but the 171 is not being encrypted by the ASA at all.
Cisco WAN :: RV082 IPSEC VPN Missing 50 Percent Of Packets
Apr 2, 2013We have two offices connected using Site-to-Site VPN (IPSEC) as shown:(IP ficticius)Office 1 - We had to use 2 routers since we have a range of valid IPs: From a host in office 2 we normally ping 192.168.102.1 (gateway at office 1),But when pinging a host inside office 1 (eg: 192.168.102.8) 50% of packets have been lost.Could it be a hardware problem?
Cisco :: ACS 4.0 / Decrypt Errors On WLC Version 7.0.98
Feb 23, 2011I am seeing a lot of the following showing up in the WLC trap log:
Decrypt errors occurred for client <CLIENT-MAC> using WPA2 key on 802.11b/g interface of AP 00:17:0f:81:ad:90
we are using WLC runninn 7.0.98 and ACS 4.0
Decrypt errors occurred for client <CLIENT-MAC> using WPA2 key on 802.11b/g interface of AP 00:17:0f:81:ad:90
we are using WLC runninn 7.0.98 and ACS 4.0
Cisco AAA/Identity/Nac :: ISE V1.1 NAD 6500 Failed To Decrypt Key
Sep 11, 2012I´ve implemented 2 Cisco ISE v1.1 in HA to run MAB and 802.x Authentication / Authorization. Using Local ISE DB and Active Directory as an External Identity Source for wireless and wired users and devices. This was working fine 2 weeks ago after finishing installation.
My NAD devices are a Core SW 6500 for wired users (there are no access SW, just the Core for the whole network, its a small office) and a WLC 2405 for Wireless Users.[code]...
My NAD devices are a Core SW 6500 for wired users (there are no access SW, just the Core for the whole network, its a small office) and a WLC 2405 for Wireless Users.[code]...
Cisco VPN :: 2581 - Decrypt / Mac Verify Failed Error
Feb 16, 2011Getting this error on the data center 2581 (12.4(24)T) from a GRE/IPSEC tunnel, remote branch is 2811 running 12.4(25d)
%CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection id=
The tunnel has been up and working okay for months, nothing has changed on the config and the key is correct. Traffic is following but remote users are complaining of performance issues. A wireshark shows checksum errors and lots of packet resends. Remote ISP has checked the circuit and says its clean.The data centre router has quite a few tunnels but only 1 causing this issue. From the head end router -
sh crypto ips sa | b x.x.x.x
current_peer x.x.x.xport 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 15129, #pkts encrypt: 15129, #pkts digest: 15129 #pkts decaps: 13346, #pkts decrypt: 13346, #pkts verify: 13346 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 1, #recv errors 1992
Can a VPN module go bad like this? I've tried disabling the branch onboard engine and using software but it doesn't work.
%CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection id=
The tunnel has been up and working okay for months, nothing has changed on the config and the key is correct. Traffic is following but remote users are complaining of performance issues. A wireshark shows checksum errors and lots of packet resends. Remote ISP has checked the circuit and says its clean.The data centre router has quite a few tunnels but only 1 causing this issue. From the head end router -
sh crypto ips sa | b x.x.x.x
current_peer x.x.x.xport 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 15129, #pkts encrypt: 15129, #pkts digest: 15129 #pkts decaps: 13346, #pkts decrypt: 13346, #pkts verify: 13346 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 1, #recv errors 1992
Can a VPN module go bad like this? I've tried disabling the branch onboard engine and using software but it doesn't work.
How To Encrypt Connection
Oct 24, 2011I can't open www.tv3.lt, because is writen, that CONNECTION IS NOT ENCRYPTED. Al the time it was OK. What the matter.
Cisco Wireless :: AIR-WLC2106-K9 - Decrypt Errors Occurred For Client
Jun 13, 2010I am getting error messages for clients:
11 Mon Jun 14 09:11:56 2010 Decrypt errors occurred for client 00:13:ce:54:57:3c using WPA key on 802.11b/g interface of AP 00:16:9c:91:97:c0 12 Mon Jun 14 09:11:56 2010 Decrypt errors occurred for client 00:16:6f:91:d8:60 using WPA2 key on 802.11b/g interface of AP 00:16:9c:91:97:c0
These are only occuring for clients that are disconnecting..
They can reconnect after a WLC reboot..
We have swapped APs...
I have seen this error in other forums but it says not to worry about it. There has to be a connection between this and clients getting disconnected. We have anywhere between 10-50 clients on the system at any one time.Is this a client issue (nic firmware, version) or is this an error in the controller??
AIR-WLC2106-K9
IOS ver: 6.0.196.0
11 Mon Jun 14 09:11:56 2010 Decrypt errors occurred for client 00:13:ce:54:57:3c using WPA key on 802.11b/g interface of AP 00:16:9c:91:97:c0 12 Mon Jun 14 09:11:56 2010 Decrypt errors occurred for client 00:16:6f:91:d8:60 using WPA2 key on 802.11b/g interface of AP 00:16:9c:91:97:c0
These are only occuring for clients that are disconnecting..
They can reconnect after a WLC reboot..
We have swapped APs...
I have seen this error in other forums but it says not to worry about it. There has to be a connection between this and clients getting disconnected. We have anywhere between 10-50 clients on the system at any one time.Is this a client issue (nic firmware, version) or is this an error in the controller??
AIR-WLC2106-K9
IOS ver: 6.0.196.0
Cisco Wireless :: 1242AG / 2106 - Decrypt Errors Occurring In WLC Log
Dec 10, 2008we see a strange message in our WLC logs, which occurs quite often (>10 times a day):Decrypt errors occurred for client [MAC-Adress] using WPA key on 802.11b/g interface of AP [MAC-Adress]The MAC-Adresses of the affected clients are varying as well as the APs reporting the error.The clients are Notebooks, Cisco IP-Phones and Nokia-DualBand-Phones.
Even more frequently we see the following message in the log:
%ETHOIP-3-PING_TRANSMIT_FAILED: ethoip_ping.c:227 send_eoip_ping: Failed to tx Ethernet over IP ping rc=5.
We use TKIP as Encryption and EAP-Fast as well as LEAP as Authentication (Cisco ACS).The WLC is an 2106, the APs are 1242AG. We don't recognize any problems placing calls or talking over these phones. It's just these messages in the log that concern me.
Even more frequently we see the following message in the log:
%ETHOIP-3-PING_TRANSMIT_FAILED: ethoip_ping.c:227 send_eoip_ping: Failed to tx Ethernet over IP ping rc=5.
We use TKIP as Encryption and EAP-Fast as well as LEAP as Authentication (Cisco ACS).The WLC is an 2106, the APs are 1242AG. We don't recognize any problems placing calls or talking over these phones. It's just these messages in the log that concern me.
Cisco WAN :: 2691 And PoE Support With NME-16ES-1G-P?
Sep 15, 2011i have a cisco 2691 and i would like to install NME-16ES-1G-P to set up a Voice Lab environment.Is it possible to have 802.3af PoE support for 2691 using the NME-16ES-1G-P updating the AC power supply? Or does any other solution exist to have 802.3af support on 2691?
How To Encrypt Internet Connection
Decrypt Mac Verify Failed For Connection Id Card
Aug 16, 2012Whenever i open any web page. just before its address at address bar shows a symbol which says ' This website does not supply Identity Information. Your connection to this website is not encrypted
Cisco 2691 - Can't Ping Past Gateway
Oct 24, 2012I've spent the last two days working on this problem and it is killing me! I know the answer has to be something simple, but despite hours of searching and trying different things, I just can't seem to fix it.Essentially, I am going to be installing a Cisco 2691 and use it as the default gateway for a small business. It will be directly connected to a cable modem with a static IP. The other Ethernet interface is going to connect to a 2950 switch with a couple different VLANs.
The problem I'm having is that I can ping anything external from the router itself. From the clients connected to the 2950, I can ping IPs in other VLANs, and I can ping up to the IP of the external interface, but no pings go beyond that.I've set up NAT overload on the router, and when I do a debug ip nat, I see the pings trying to get through with the proper translations, but I still don't receive ICMP replies back.I set up GNS3 to simulate what I'm trying to accomplish (since it emulates a 2691). Attached is a jpg of the topology -- on the right is the 'simulated ISP' with 3 loopback networks and one host on a different subnet. The 2691 has a static route to the 'Internet' router, and can ping everything attached to the router, including the host. The host (5.5.5.5) can also ping the outside interface of the 2691 (50.50.50.2).
However, the hosts behind the 2691 can't ping past 50.50.50.2. The 192.168.0.x network can be ignored, because that network won't need to access the Internet. But the 10.10.20.x (VLAN 20) and 10.10.30.x (VLAN 30) networks will need to. In the simulation, the hosts are 10.10.20.5 and 30.5. They can ping each other, their default gateways, and the 2691 outside interface (50.50.50.2) but not the other side, the 'Internet' router at 50.50.50.1 or beyond.
[code]..
The problem I'm having is that I can ping anything external from the router itself. From the clients connected to the 2950, I can ping IPs in other VLANs, and I can ping up to the IP of the external interface, but no pings go beyond that.I've set up NAT overload on the router, and when I do a debug ip nat, I see the pings trying to get through with the proper translations, but I still don't receive ICMP replies back.I set up GNS3 to simulate what I'm trying to accomplish (since it emulates a 2691). Attached is a jpg of the topology -- on the right is the 'simulated ISP' with 3 loopback networks and one host on a different subnet. The 2691 has a static route to the 'Internet' router, and can ping everything attached to the router, including the host. The host (5.5.5.5) can also ping the outside interface of the 2691 (50.50.50.2).
However, the hosts behind the 2691 can't ping past 50.50.50.2. The 192.168.0.x network can be ignored, because that network won't need to access the Internet. But the 10.10.20.x (VLAN 20) and 10.10.30.x (VLAN 30) networks will need to. In the simulation, the hosts are 10.10.20.5 and 30.5. They can ping each other, their default gateways, and the 2691 outside interface (50.50.50.2) but not the other side, the 'Internet' router at 50.50.50.1 or beyond.
[code]..
How To Encrypt Internet Connection Running XP
Aug 16, 2011I am running win xp and I am very intrested in encrypting my internet connection using exp.8 and firefox 4. what do i have to do to get the ball rolli ng?
Cisco VPN :: 2691 - EzVPN With XAuth Auto Connect
Nov 17, 2008I have problem auto connect Easy VPN client to Easy VPN server using saved X auth username/password. The ez vpn client is a Cisco 2691 using IOS 12.4.15T7. The config is as follows:
crypto ipsec client ezvpn EZ
connect auto
[code]..
the router keeps prompting me to manually enter username/password. connectivity will work be established after i manually enter the username/password. But this is not what i desired. I need it to connect automatically.
The Ez vpn server is a 7200 running 12.4.22T. Config as follows:
aaa new-model
aaa authentication login USERAUTHEN local
aaa authorization network GROUPAUTHOR local
[code]...
crypto ipsec client ezvpn EZ
connect auto
[code]..
the router keeps prompting me to manually enter username/password. connectivity will work be established after i manually enter the username/password. But this is not what i desired. I need it to connect automatically.
The Ez vpn server is a 7200 running 12.4.22T. Config as follows:
aaa new-model
aaa authentication login USERAUTHEN local
aaa authorization network GROUPAUTHOR local
[code]...
Secure / Encrypt Network Share In Windows 7?
May 18, 2011I've got an office network that I would like to add a NAS drive to in a Windows 7 environment.
However, I want to make sure the NAS is both encrypted and password protected on the network to make sure someone doesn't just walk off with our company data (by taking the whole NAS with un-encryped info) or logging on through our network.
What would be your recommendation for a NAS setup that would offer total data encryption, great security from non-authorized people on the network, and 100% Windows 7 compatibility?
However, I want to make sure the NAS is both encrypted and password protected on the network to make sure someone doesn't just walk off with our company data (by taking the whole NAS with un-encryped info) or logging on through our network.
What would be your recommendation for a NAS setup that would offer total data encryption, great security from non-authorized people on the network, and 100% Windows 7 compatibility?
Cisco WAN :: 2691 And 7604 To Play With AutoQos Feature Via Routers
May 21, 2013I have router Cisco 2691 and Cisco 7604 and want to play with AutoQoS Cisco feature. But on both there is no such command But why?
Using PPTP Or OpenVPN Encrypt Entire Connection To Internet?
Jul 15, 2012If i use PPTP or OpenVPN does this encrypt my entire connection to the internet or just web browsing?
E7500 Offsite Storage Server - Encrypt Data?
Feb 20, 2012I am setting up an offsite storage server for work at my home which will sync a few times a day to grab data and i wanted to ask about options for encryption or if i should worry about it.i am going to be initially dumping about 1-1.5T worth of data, with then maybe a couple of gigs a day added of new stuff.i am going to use server 2008 r2 as i am also doing a read only DC/AD for this system to give me and offsite controller just incase also.
I was thinking encryption for one more level of safety just incase something happened to the server, like theft or something but not sure what could reliably handle that much data ? System is only a dual core e7500 with 8G of ram, i have 2x500G SATA in raid 1 for the OS and 4 x 1T drives in raid 6 with 2 more coming.
I was thinking encryption for one more level of safety just incase something happened to the server, like theft or something but not sure what could reliably handle that much data ? System is only a dual core e7500 with 8G of ram, i have 2x500G SATA in raid 1 for the OS and 4 x 1T drives in raid 6 with 2 more coming.
Cisco Switching/Routing :: Does 2691 Router Supports 3 - WIC-1DSU-T1- Cards
Dec 20, 2011My 2691 Router has already 2 serial cards WIC-1DSU-T1 installed, When i install the 3rd serial card and reboot the router, it detects the 3rd card installed but 3rd card has no light.
When i do sh ver it shows 3 cards installed.
When i install this 3rd serial card to other Router then light shows on card and it works fine
So i am thinking if 2691 Router only supports 2 serial cards?
When i do sh ver it shows 3 cards installed.
When i install this 3rd serial card to other Router then light shows on card and it works fine
So i am thinking if 2691 Router only supports 2 serial cards?
Cisco Switching/Routing :: Enable Url Filtering On 2691 Or 2651XM Routers
Nov 22, 2011I was wondering if i can enable url filtering on my 2691 or 2651XM routers so that if someone visits any website i can see that under router logs. right now i am using kiwi syslog that logs the router activities.
Cisco Switching/Routing :: 2691 / 2811 - Where To Begin When Setting Up Multicast
Sep 5, 2012We're starting to share video across our network and would like to setup multicast to conserve at least some of the bandwidth. We have a broad mix of equipment (A Catalyst 6509-E at the core, a combination for Cisco 2691 & 2811 routers, and a whole lot of Catalyst 3500, 3550, 3560 switches at a hundred locations. Where would I begin? Would I need to define routing for the multicast IP addresses (224.0.0.0)? Would I need to setup interfaces & IP networks where each multicast device is located like I would for a new IP subnet?
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Cisco Switching/Routing :: 2691 Router Buffer Leak Due To Syslog?
Dec 3, 2011On my 2691 Router i see the buffer leak due to syslog
2691Router# sh buffers leak
Header DataArea Pool Size Link Enc Flags Input Output User
650743C4 F200084 Small 0 0 0 0 None None Init
[Code]...
2691Router# sh buffers leak
Header DataArea Pool Size Link Enc Flags Input Output User
650743C4 F200084 Small 0 0 0 0 None None Init
[Code]...
Cisco Switching/Routing :: 2691 - Unable To Reach Enable Mode By Console Connection
May 10, 2012I have 2691 router with following config
line console 0
login local
password xty
When i remove the login local from the line console i connect to console port and press enter it shows router prompt 2691Router> but i am unable to go to enable mode.If i telnet to router then i put username and pw then it goes straight to enable mode.
vty config is
line vty 0 4
exec-timeout 600 0
logging synchronous
login local
length 500
transport input telnet ssh
escape-character 3
Any reasons why i can not go to enable mode by console?
line console 0
login local
password xty
When i remove the login local from the line console i connect to console port and press enter it shows router prompt 2691Router> but i am unable to go to enable mode.If i telnet to router then i put username and pw then it goes straight to enable mode.
vty config is
line vty 0 4
exec-timeout 600 0
logging synchronous
login local
length 500
transport input telnet ssh
escape-character 3
Any reasons why i can not go to enable mode by console?
Cisco Switching/Routing :: 2691 / 6500 - Unable To Ping IP Of IBGP Nei Loop Back
Apr 6, 2012Here is my Lab Setup: 2691 is BGP nei to R4 router and they are not directly connected. 2691 and R4 are in same AS 6500. 2691 Config---router ospf 1 network 3.3.3.3 0.0.0.0 area 0 . Its advertising its loop back IP to OSPF domain.
router bgp 6500
no synchronization
bgp log-neighbor-changes
neighbor 6.6.6.6 remote-as 6500
neighbor 6.6.6.6 update-source Loopback3
[code]..
R4 Router
router ospf 11
log-adjacency-changes
network 6.6.6.6 0.0.0.0 area 0
[ code]...
We can see that 2691 and R4 are BGP neis and 2691 has 200.1.x.x routes in its route table. My question is why from 2691 router i am unable to ping any route learned by BGP from R4?
2691Router# ping 50.1.1.0 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 50.1.1.0, timeout is 2 seconds:...Success rate is 0 percent (0/5)2691Router#ping 200.1.2.0 [ code]..
router bgp 6500
no synchronization
bgp log-neighbor-changes
neighbor 6.6.6.6 remote-as 6500
neighbor 6.6.6.6 update-source Loopback3
[code]..
R4 Router
router ospf 11
log-adjacency-changes
network 6.6.6.6 0.0.0.0 area 0
[ code]...
We can see that 2691 and R4 are BGP neis and 2691 has 200.1.x.x routes in its route table. My question is why from 2691 router i am unable to ping any route learned by BGP from R4?
2691Router# ping 50.1.1.0 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 50.1.1.0, timeout is 2 seconds:...Success rate is 0 percent (0/5)2691Router#ping 200.1.2.0 [ code]..
Cisco Routers :: Can RV042G IPSec VPN Support Apple IOS IPSec VPN
Apr 29, 2013I tried any type of combination and just couldn't make it works. Only PPTP works well. Whether Apple iOS IPSec VPN is supported or not?
Cisco :: RTP Packets Out Of Sequence
Feb 3, 2013Decrypt Mac Verify Failed For Connection Idm
I've no experience in VoIP and been ditched with looking at an IP trunking problem on our network.The users where getting dead lines or silent calls, but it seems after re-seating IP trunking card here and there around the network a few times, all is settled to normal. Unfortunately it's a third party that look after the majority of the telephony, and as they can't figure out why this happens they often say it must be a problem with the data WAN it traverses.So I started trying to figure something out, I have IPSLA monitoring setup in Solarwinds on most of the routers and all looks well from that aspect; MOS is 4.34 and Jitter is only 1ms at worst. I've taken a wireshark packet capture of the IP trunk by mirroring the port on the switch at a main site where I've been told a lot of calls are routed through. Inside wireshark I used the 'telephony> voip calls' tool and decoded all the calls. The output is showing most calls have 'Out of Seq' and 'Wrong Timestamp' at around 25-50%. Although these calls seem fine otherwise, and I took this capture whilst the fault was not occurring. I know I need to capture next time when the fault is occurring, but this is what I have for now.How can i fix this or even start to troubleshoot further?
p.s- each site has two routers running GLBP to the WAN, over two ISP locations. I read something about having consistent routing to avoid packets arriving out of sequence, but haven't found anything yet to say this is how I can/should do that.
p.s- each site has two routers running GLBP to the WAN, over two ISP locations. I read something about having consistent routing to avoid packets arriving out of sequence, but haven't found anything yet to say this is how I can/should do that.
No Sent And Received Packets?
Feb 3, 2011My sent packets are 0 and also received packets. What can I do?
No Packets Being Received On Pc
Jul 20, 2011I use a wireless adapter to connect to our home network but its stopped receiving packets but is sending them. It has worked fine for ages now it just randomly stopped. The network works with everything else (laptops, Xbox and iPods) but my pc wont receive anything. Also our home connection has no password as we live in the middle of nowhere.
Packets Sent But Not Received?
Oct 29, 2011I am having a really hard time with a computer that has a wireless connection. Specifically the internet keeps going out. The computer info is that of the affected computer and not the host computer to which the router and modem are connected.
Sent Packets Are More Than Received
Sep 9, 2012How come my packets sent are so high.
Decrypt Mac Verify Failed For Connection Id Password
*Feb 19 21:58:56.751: %CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection id=2001 local=14.0.0.1 remote=16.15.0.254 spi=0CDE4B1E seqno=00000213
OK so playing around in my LAB, I had created a simple GRE Point to Point Tunnel between two site routers with one router in between. See picture, I chose AES 256
The tunnel is up everything seemed great until I saw the following syslog message “%CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection id=2001 local=14.0.0.1 remote=16.15.0.254 spi=0CDE4B1E seqno=00000220”.
After doing some research there were recommendations for trying different transform sets, verifying the passphrase and disabling fast switching. (no ip route-cache) Unfortunately this has not solved the issue ……. hmmmmmmmm
I will get this ………. traffic still flows through the tunnel and research shows that this is an issue with mac decryption and some sort of bug in the Cisco code. Not to sure about that though. Some cases have shown that the ‘no ip route-cache’ and ‘no ip route-cache cef’ actually have worked in eliminating this error. Could it be on case by case basis?
hmmm
I will have to put WireShark to work on this and see what is going on………
Decrypt Mac Verify Failed For Connection Identity
“To be Continued…………”