Cisco Switching/Routing :: 1841 Enable ICMP After Auto-secure
Dec 31, 2011I ran autosecure on my 1841 routere and now I cant do ping or traceroutes. What should I do to enable the pings and traceroutes after auto secure is done.
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Cisco WAN :: 1841 / How To Test ICMP Time-exceeded
Oct 28, 2012i had a client request to block ICMP request on their 1841 WAN link. i've got ACL hits for ACE 170 but not for 171.
how to test or simulate for ICMP time-exceeded? is this TTL related and is there a DOS command or any way to produce ping packet with a less TTL count that would hit the ACL log? below is the config.
interface FastEthernet0/0
ip address 202.42.x.y 255.255.255.252
ip access-group IDS_Fastethernet0/0_in_0 in
ip access-list extended IDS_Fastethernet0/0_in_0
[code]....
Cisco Firewall :: How To Enable ICMP Between Two Inside Interfaces ASA5510
Feb 20, 2013Today I run into a problem with enabling ICMP traffice between two inside interfaces on ASA5510 (version 8.2). I tried to ping from 192.168.1.2 to 192.168.2.2 Failed. But I can visit outside websites or ping from any of the two addresses above to 8.8.8.8 So I checked the configuration shown as follow
<omitted>
interface ethernet0/1
nameif inside
[Code]....
Cisco Switching/Routing :: ME3800 - ACL To Match ICMP
Nov 24, 2011We have some ME3800MX router/switches running ME380x-UNIVERSALK9-M), Version 12.2(52)EY2. The Cisco website says:
The switch does not support these Cisco IOS router ACL-related features: # •Non-IP protocol ACLs (see Table 26-1) or bridge-group ACLs
how we would match ICMP traffic then?
Cisco Switching/Routing :: Monitor ICMP Traffic On C6509?
Dec 22, 2011Both regular IP traffic and ICMP traffic are passing through the source port. C6509 provides the option of filtering vlan traffic during monitoring. But I don't have vlan traffic.
qa-c6509-c(config)#monitor session 1 filter ? vlan SPAN filter VLAN
So I applied an access-list which only allows icmp traffic to be sent out of the monitoring port. But it does not work.
Cisco Switching/Routing :: 1800 - Configure IP SLA With ICMP Tracker?
Jan 16, 2012I would like to configure IP SLA with ICMP tracker. What is the minimum IOS & Feature required in cisco 1800 Router?
View 2 Replies View RelatedCisco Switching/Routing :: Auto QoS On 4507R-E?
Mar 15, 2010I have a 4507R-E chassis with Supervisor IV running IOS 12.2(50)SG. I am trying to configure "auto qos voip trust" on some of the uplink ports. When I try to configure it on a port that is in a channel group, I get the error "AutoQoS Error: AutoQoS can not be configured on member port(s) of a port-channel". I have also tried configuring it on the channel interface, but it is not an available command under the channel interface. Is there a way to do auto qos on the channel interfaces or their member ports or does it have to be configured manually?
View 12 Replies View RelatedLinksys Wireless Router :: E4200 - Reset To Factory Defaults / Enable IPV6 Auto
Aug 10, 2011I flashed the firmware and the ipv6 automatic is on disabled and I cannot set it to enabled.the 6rd tunnel option I can change but that has not effect- in fact from what I looked up it seems to be something used by some cable providers.hate to have to reset the router to factory defaults and then reset the network up - just to see if i can get the option to set IPV6 auto to enabled.
View 3 Replies View RelatedCisco Switching/Routing :: 3750 - ICMP Redirect Aging Timer
Apr 29, 2013Amazed I cannot find this in any documentation but I want to know the default aging timer for ICMP redirects on a 3750 switch running at layer 2.
View 10 Replies View RelatedAAA/Identity/Nac :: Use Cisco Secure ACS 4.2 To Enable Command Authorization Using TACACS?
Nov 5, 2011provide a sample configuration to use Cisco Secure ACS 4.2 to enable command authorization using TACACS.
View 8 Replies View RelatedCisco Switching/Routing :: Why Won't 3750 Auto Discover
Jun 6, 2012I have a 3750 that when a client computer shuts down the switch will not discover it on start-up unless I bounce the switch. Pretty dependable product so,.... did I miss something in my config? Switch is GBIC'd for Fiber?
View 2 Replies View RelatedCisco Switching/Routing :: 4948 - Regarding IOS Image And Auto QoS
Mar 8, 2013I have 4948E module switch at customer site and below is the show version output. Image on the switch is not supporting 'AUTO QoS' as i need to enable Auto Qos on it to prioritize Voice traffic. Which image supports Auto QoS feature . Image should have L3 functionality also i mean it should support Routing protocols. I tried to enable auto QoS using by configuring "QoS' globally but no luck...with existing image.
{ URL}
ROM: 12.2(44r)SG9
Hobgoblin Revision 20, Fortooine Revision 1.22
Switch up time is 12 hours, 1 minute
System returned to ROM by reload
[ code]...
Configuration register is 0x2012
Switch#sh boot flash:
-#- --length-- -----date/time------ path
1 25793234 May 31 2011 15:20:20 cat4500e-entservicesk9-mz.122-54.SG.bin
2 25005209 Mar 08 2013 09:53:18 cat4500e-entservices-mz.122-54.SG1.bin
70033408 bytes available (58249216 bytes used)
Cisco Switching/Routing :: Nexus 5500 Duplicate ICMP Echo-replay
Nov 24, 2012I am experiencing inconsistent echo-replay from devices connected via VPC to Nexus 5500s while pinging from the Nexus exec prompt.
In some cases I receive normal response when pinging from one Nexus, but no response when pinging from the other switch. In other instance I receive normal response to one Nexus, and duplicate replays to the other. It looks like a VPC related bug. NXOS is 5.1.3.N2.1
5501# ping 10.12.12.232
PING 10.12.12.232 (10.12.12.232): 56 data bytes
64 bytes from 10.12.12.232: icmp_seq=0 ttl=253 time=8.585 ms
64 bytes from 10.12.12.232: icmp_seq=0 ttl=254 time=9.227 ms (DUP!)
64 bytes from 10.12.12.232: icmp_seq=1 ttl=253 time=1.011 ms
64 bytes from 10.12.12.232: icmp_seq=2 ttl=253 time=8.097 ms
64 bytes from 10.12.12.232: icmp_seq=2 ttl=254 time=9.429 ms (DUP!)
64 bytes from 10.12.12.232: icmp_seq=3 ttl=253 time=18.195 ms
64 bytes from 10.12.12.232: icmp_seq=4 ttl=253 time=8.807 ms(code)
Cisco Switching/Routing :: ICMP High Response Time To SVI Interface 3750X
Mar 13, 2011I am in the process of installing a 3750x (IOS 12.2 (53r) SE2 IP Base) Cisco Catalyst switch in a new network of just 2 PC's (2 hosts, OS windows7 64Bits). I have enabled SVI interfaces with the both hosts installed in 2 different network segments. We then start connectivity test. The response time for the PING command between both hosts remain below 1 millisecond, whereas the response time between the hosts and their correspondent SVI interface is variable, and at all time is higher than 1 millisecond, sometimes it reaches 17 milliseconds. (Note that the switch CPU usage is only 8% at the time of testing) We have performed this same connectivity test changing the 3750x switches and in two different locations obtaining the same results.
View 2 Replies View RelatedCisco Switching/Routing :: C6509 Loss Of Packets ICMP Sent By Different Hosts In Different VLAN
Oct 17, 2012I've a big problem with a loss of packets ICMP sent by different hosts in differents VLAN. Here my architecture:
Core Switch : 2 Switch's C6509 (Version 15.0 (1) SY1)- Mode VSS - One lien VSL , the other link is defective.Access Switch: C3750 , Connected to Core Switch through 2 fibre optique wires.Topology: redundant ring
When I send consecutive ping message I found always a missing of packets . Furthermore When I insert the "show ip traffic" command., the parameter "bad hop count" increase after a loss of packets. I've 2 hosts connected in my network and they send packets with TTL =127.
In the Core Switch I haven't configured the MEC because it gave me troubles with the packets multicast.
Cisco Switching/Routing :: 3750 Switch - ICMP Delay To Default Gateway
Aug 25, 2012I had setup a lan infrastructure with 5 3750 stack swithes. In these 3 of them are in one stack which is acting as access switch, 2 of them in another stack which is as core switch where all the SVI is configured. Now, when i tried to ping from our edge pc which is connected in access switch to default gaeway, which is configured in core switch, the ICMP is getting delayed . But when try to ping from the same edge pc to another user PC, it is getting less tahn 1 millisecond icmp replies.
why icmp is delaying to default gateway , but working with another edge to edge pcs without any delays?
Cisco Switching/Routing :: IP SLA ICMP Echo Support Catalyst 3560X / 3750X?
Feb 13, 2012Need to clarify if ip sla icmp echo operation is supported in catalyst 3kx switches (ip services)? on the configuration guide, commands are available, but on the feature navigator, i can't find the feature, only ip sla video operation. i don't have a device to test on here.
View 2 Replies View RelatedCisco Switching/Routing :: WS-C2950S 23 Hours Of Icmp Ping Unreachable On Switch?
Mar 7, 2012Today one of our 9 Cisco switches a "WS-C2950S" (we also got 2 other WS-C2950S on same network) stop responding icmp ping packages. When i tried to telnet the switch its network was unreachable but i was able to see its existance from other switches by "sh cdp neig". So i decided to fix the situation on a suitable night time work, checking by console cable or even rebooting the device.
Then i started to wonder... what this could possibly be about?We have like 40 clients behind that switch and there was no communication problem during the problem.
Cisco Switching/Routing :: Catalyst 3750-x Icmp Delay To Default Gateway?
Sep 10, 2012i am facing a problem when the client vlan is commmunicating with the default gateway on the core 3750-x.
ios in 3750-x core is 3750e-universalk9-mz.150-2.SE.bin. But, client to client communication is happening without any dealy and icmp is less than 1 ms always.
When try to ping default gateway of client vlan, it is getting delayed (variable icmp delays). Is this an ios bug?
Cisco Switching/Routing :: Auto-QoS On Catalyst 3750 LAN Switches?
Aug 12, 2012why the AutoQoS macro does not implement "priority-queue out" when configured on the 3750 platform running certain versions of software. The only other platform I have experience with AutoQos is on the 4500 and it enables priority queuing as expected. So what's up with autoqos on the 3750 on version 12.2(35)SE5?
When it comes to configuring QoS on campus user/phone access ports there are some important settings that can and should be considered but one can argue that enabling the priority queue is the single most impactful or important command. So I was very surprised and concerned when I didn't see priority-queue out. Cisco describes AutoQoS as a simple, quick way of deploying QoS on the LAN and it precludes you from having to learn all of the differences between hardware platforms. But is it true that this tool produces an incomplete config solution? Let me know if I am missing something.
Here is an example of what AutoQoS produces when applied to a 4507 with WS-X4648-RJ45V+E:(other interface commands are left out for simplicity)
interface GigabitEthernet5/25description XYZ
switchport mode accessauto qos voip cisco-phoneqos trust device cisco-phoneservice-policy input AutoQos-VoIP-Input-Cos-Policyservice-policy output AutoQos-VoIP-Output-Policy
policy-map AutoQos-VoIP-Output-Policy
class AutoQos-VoIP-Bearer-QosGroup
set dscp ef
[code]......
Here is an example of what AutoQoS produces when applied to a 3750 running version 12.2.(35)SE5: (no priority-queue out)
interface GigabitEthernet1/0/36
switchport access vlan 8
switchport mode access
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
[code]......
Cisco Switching/Routing :: 3750 Auto-QoS Egress Discards
Dec 18, 2011I have an issue where I'm seeing output discards on pretty much all my ports configured for QoS. The switches are cisco WS-C3750V2-48PS running 12.2(50)SE1. There are four switches stacked using stack cables. The QoS implemeted was auto-qos with no modifications to the standard config. All ports are in queue-set 1. The phones connected are Cisco 7942's. Already did the standard check for speed duplex mismatch, crc's, runts, giants, etc...No discards before the QoS was applied. No bug ID's I could find regarding these switches and this IOS version. The one thing noticed is that 99% of all the drops are from queue's 2 and 4 or 1 and 3 doing the below command.
**I've limited the cut and paste as to not clutter the discussion until someone requests something else**
show platform port-asic stats drop
Port 18 TxQueue Drop Statistics
Queue 0
Weight 0 Frames 0
Weight 1 Frames 0
[Code]....
Cisco WAN :: How To Enable GUI For 1841
Nov 23, 2011How to enable GUI for a Cisco 1841?
View 4 Replies View RelatedCisco :: How To Enable GUI For 1841
Nov 23, 2011How to enable GUI for a Cisco 1841?
View 1 Replies View RelatedCisco Switching/Routing :: 4500 Series Switch Auto Reboots
Apr 1, 2013We are facing cold start issue on 4500 series switch. The switch is restarting automatically almost weekly twice or thrice.As per show tech. output , there is "cold start log".Please find the attached logs for your reference.After time change , auto restart happening & am not found any log for power failure also.
View 6 Replies View RelatedCisco Switching/Routing :: 1141 WAP Won't Work With Auto Diagnostic Tool
Jan 7, 2013We just replaced our Cisco 1240 AP in one of our shops with a Cisco 1141 AP. This is not controller based.
We use several wireless (infrastructure mode) auto diagnostic tools which connect to the AP. We also have many laptops which run the diagnostic software.
We had no problems with our 1240AP. With our 1141, we cannot connect to the wireless tools if both the laptop and the tools are connected to the 1141. If I connect one to the 1240 and one to the 1141, they can see each other and work fine. IF they are both connected to the 1141, they show up as connected in the AP, they can ping each other, but the software does not communicate.
[URL]
Cisco Switching/Routing :: 4500 Sup6E Auto QoS Configuration On PortChannel
Jun 28, 2012I configured Auto QoS on some access ports on two 4506-E (Sup 6E-L) and I wanted to apply the same generated config on the port channel/port channel members but it didn't work.
Ex:
int gig1/3
service-policy input AutoQos-VoIP-Input-Cos-Policy
% A service-policy with non-queuing actions should be attached to the port-channel associated with this physical port.
[Code].....
Cisco Switching/Routing :: Auto Qos Dropping Port Channel In 3750?
May 13, 2012We have a switch that, when configuring auto qos on and edge port facing video equipment, the upstream port channel drops. I was wondering if no auto qos would have to be configured on the member ports of the port channel prior to enabling auto qos on any other ports.
View 2 Replies View RelatedCisco Switching/Routing :: 6500 - How To Set Switch On Auto Terminal Server
Apr 22, 2012I have a switch(6500) with 2 vlans(2 SUBNETS) and from the other side of my network i have 2 terminal servers.
I want to have a VIP in my 6500 switch which i have the 2 vlans and when the first vlan(network) try to connect to the VIP
my switch will forward to first terminal.When the second vlan try to connect to VIP the switch will forward to second terminal.
I'd like the switch to decide in wich terminal server will forwared the packet based on source network.
I am not sure how i can do this???I use VIP with SLB???I use NAT???PBR?
Cisco Switching/Routing :: 1941 Auto Failover With Load Balancing?
Jan 27, 2013One of our customer has 3 ISP Line, out of which Two are Broadband and One is Leased Line. All 3 ISP interfaces are Etherent.
Now, they want Auto Failover with Load balancing among these 3 ISP lines.
Can we do same implementation in Cisco 1941 Router?? What licenses required in router for same?
Cisco Switching/Routing :: Difference Between Auto Qos And Voip Trust With C2960S
Aug 1, 2012Are there any differences between the autoqos commands on a WS-C2960S switches (or in any other series)? Follow the commands:
- auto qos trust
- auto qos voip trust
I was checking the documentation on this link:
URL
And couldn't find any great difference between the two commands, as far as I could see they'll set the Ingress and Egress queues the same way.
Are there any differences between those two commands (auto qos trust and auto qos voip trust)? If so, when should I use one and the other?
Cisco Switching/Routing :: Auto-redundancy Using Etherchannel In 2960 Not Working?
Apr 15, 2012I'm using Packet Tracer for testing since I don't have the actual equipment. I have configured etherchannel between two 2960 Switches. I have used the trunk ports FE 0/23 and FE 0/24 on both switches to create the etherchanel. I have connected one PC with each switch. The PCs are in the same VLAN and can ping each other. Howver, when I take down one of the links in the etherchannel, the other link does not take over and I get 100% packet loss. I don't know what seems to be the problem. I'm quoting the configurations below:
Switch0:
Switch#sh running-config
Building configuration...
Current configuration : 1179 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
[code]....
Cisco Switching/Routing :: 3750X Stack Auto Vs Manual Upgrade
May 8, 2013Are there issues with the auto upgrade feature for 3750X stacks, either historically or currently?
Some people prefer to upgrade switch stacks manually by disconnectiong the stack cables and uprading code on each switch.
I've done the manual procedure in the past and have not tried the auto upgrade (I have the procedure for the auto upgrade).
Cisco Switching/Routing :: 2811 Disable Audit-trail For Icmp Packets In CBAC Logging
Mar 23, 2013I have a cisco 2811 router set up as a nat/firewall gateway for my network. I've configured it for CBAC on using ip inspect and an access list.What I want is to use audit-trail to record network traffic (which means sending syslog messages to a server) concerning established sessions from my own network to locations in the outside. If i configure this using ip inspect audit-trail and no ip inspect alert-off, the configuration looks like this: [code] which works just fine, but there is the matter of icmp packets.
Since i use polling software that needs to check some machines in the outside part of the network, it is only natural that several icmp sessions are established through the Inspection Rule per minute. The problem is that since these sessions are recorded along with everything else, my syslogs are flooded with these (since i am using logging trap informational) to the point that more messages are generated about icmp than all other traffic combined, especially in non-working hours.What I am asking is a way for the audit-trail to be selecively disabled for icmp, so that the outgoing (echo) &incoming (echo reply) sessions can be established without generating syslog messages.