Cisco Switches :: Setting Up New SF-300 Managed Switch - Not Passing Traffic

Sep 15, 2011

I just purchased a new SF-300 managed switch for the purpose of using it on the DMZ, so we can mirror the internet port and monitor traffic for my company.  I have set it up from the web interface to miror port 1 to port 2 and that's pretty much it.  I decided to test it before putting it in production, by hooking it up to one of my core network switches, connecting a laptop to it and trying to get online.  It doesn't even connect to my DHCP server to get an IP address.  If I put the laptop back on the same subnet as the switch management IP, I can still connect to the switches web interface.  Isn't the basic functionality of a switch to pass traffic? 
 
I should also mention that I'm not a network engineer, so there might just be something I'm missing with regard to a default setting that needs to be switched off?

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Marconi ASX-200BX / Setting Up An ATM Managed Switch?

Jun 22, 2012

Looking for support on setting up an ATM managed switch. It is a little older and void of documentation, model being Marconi ASX-200BX, that I can console but am lost from there. Much different than any Cisco switch I've ever seen.0

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Cisco WAN :: ME3400 Switch Not Passing Traffic

Jan 17, 2011

I have an Cisco ME3400-24TS-A Switch with is not behaving normal.
 
I have already erased its flash, uploaded new IOS but  could not fix the issue. However it boots normally and pass all tests show in boot process. Issue is this the i cant access or ping the computers attached to its ports from one to other.

However i can ping the switch vlan 1 IP from all computers attached to it.

When i tried Debug All Command, its shows the following:

debug all 
This may severely impact network performance. Continue? (yes/[no]): yes
All possible debugging has been turned on
Switch#
*Mar  1 00:03:41.467: special_oce_change_vectors: select debug vectors

[Code]....

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Oct 4, 2012

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Sep 5, 2012

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Feb 25, 2013

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Aug 31, 2011

I have bought this switch to try :
 
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Nov 16, 2011

We have recently purchased SG 300-52Port Cisco Switch to support our Network but they constantly having some bizarre issues or I assume bugs, i.e. we cannot Telnet nor SSH to the switch now, whereas we were able to SSH before, we have set them up for Remote Log Services to get some syslogs and reports but no report have been generated nor logs,
 
I have done some testing through Wireshark and there are absolutely no reports / logs.We have some real issues with this switch and it’s hard to believe that this is a Cisco Product,
 
SG 300-52 Port Gigabit Managed Switch
Firmware Version (Active Image ) : 1.1.1.8
Firmware Version (Non-active ) : 1.1.0.73
Boot Version : 1.0.0.4

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Apr 19, 2012

We have a standalone Cisco SGE 2000.
 
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May 30, 2012

We want to get L2 traffic amount (bit/byte) passing through a cisco switch (6500/3560 ...) for a specific VLAN. it can be via SNMP or CLI ...How can we do that?
 
note: there is no L3 interface on swtiches.

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Mar 18, 2013

I bought an ESW 540 8-port switch, mainly for the POE capability over all 8 ports, so that we can power some SPA50X phones.The concepts of a "managed" switch are challenging for a newbie.Is there a way to make this device behave like a boring "unmanaged" switch ??We have plenty of bandwidth, and don't need to be troubled by QoS and virtual LAN's, or all the security stuff at this time.Making this device work like an unmanaged switch (aka plug-and-pray).

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Cisco Security :: Catalyst 4510 / Switch Port In Dot1x Multi-auth Mode Stops Passing Traffic?

May 6, 2010

I am experiencing a problem on a Catalyst 4510 (cat4500-ipbasek9-mz.122-53.SG.bin) with 802.1x configured. Client PCs are connected via a mini desktop switch to a Cat 4510 switched port in multi-auth mode. The configuration of the port follows:
 
!interface GigabitEthernet2/34 switchport mode access ip arp inspection limit rate 30 authentication host-mode multi-auth authentication port-control auto authentication periodic authentication timer reauthenticate server dot1x pae authenticator dot1x timeout tx-period 5 dot1x max-reauth-req 6 spanning-tree portfast ip verify source vlan dhcp-snoopingend
 
It happens from time to time that the Cat 4510 port stops passing traffic. Reconnecting the mini switch recovers the communication. Client PCs connected to the mini switch seem to be authorized at the moment when the problem occures. The RADIUS Termination-Action attribute is set to RADIUS-Request. The problem is not present if "authentication periodic" is disabled.

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Oct 17, 2011

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Feb 12, 2013

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Apr 30, 2011

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Mar 22, 2011

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Sep 21, 2012

I have a vendor that currently uses a Cisco 871 as a VPN router in our company network, they use it connect to provide services to one of the servers in our LAN for our customers. Recently, we are going to be setting up a 24/7 call center with this vendor, they will be accessing a server in our network through the VPN to provide customer service during after hour periods.We have a problem however, with an application that is hosted by another vendor that is critical for our regular company call center. Access is reached with this application through this vendor by way of IPSec VPN tunnel that is built in our company's Cisco ASA 5510. This application is accessed via Internet Explorer that goes across to access the application at the endpoint
 
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Sep 7, 2011

I've got a client that recently got an ASA 5505. E0/0 is connected to the outside, E0/1 connected to the internal server (Win 2008). The ASA "local network" is 172.30.1.0/24; my internal network is 192.168.1.0/24. I'm able to connect from home through AnyConnect and get a proper address (which I've got a pool of 172.30.1.64/26 assigned for VPN users), but no traffic from my computer will go to the internal network, nor will the internal server (or the ASA for that matter) can't talk to my VPN'd computer.

On the firewall settings on the ASA, I've got it all open: any/any on both inside and outside, just to try and get anything to go through. I've even got split-tunneling working, but not traffic-passing! The config is below (redacting local AAA users).

[Code] .....

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Cisco WAN :: Passing Traffic From Lan To Wan In C1921 Router

Jan 26, 2011

Traffic Generator TG connected to R1 via switch SW . One end of the R1 is LAN1 interface and other end is WAN1. LAN1 is connected to switch SW. WAN1 is connected to R2 WAN0 interface..
 
 TG ------------- SW ------------------------------(LAN1)  Router R1   (WAN1)------------------------------(WAN0)Router R2
 
I have to pass traffic to R2 WAN0 interface.
 
Wen I pass traffic say 5000 from TG, I'm to recieve 5000 at R1 lan1 interface but I'm not to recieve at R2 WAN1 interface and hence not to R2 WAN0 interface.
 
Config at TG:'
-----------------
Destination IP : R2 WAN interfavce IP
Destination MAC : R1 LAN mac

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Nov 17, 2011

I have set a tunnel between Cisco pix 6.3 and Cisco Router 7200. Show Isakmp sa showing below detail on Pix
 
Total     : 1
Embryonic : 0
dst               src        state     pending     created
xx6.x71.x29.x68   x2.1x7.52.1x1    QM_IDLE         0           0
  
Is tunnel is UP ? Traffice is not going throgh the tunnel . why ?

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May 2, 2012

I am about to pull my hair out. I have a 1841 router at one end with 3 ASA's for teleworkers working great. I'm connecting a 4th one that I can not get to work for the life of me. The tunnel is comming up, but its not passing any traffic. I don't see any glaring errors in the VPN debug. The router comes up, reverse route injection does its thing... all looks great. Am I totally overlooking somthing? I must have rebuilt this a dozen times.
  
: ASA Version 8.2(1) !hostname ciscoasa104domain-name default.domain.invalidnames!interface Vlan1nameif insidesecurity-level 100ip address 192.168.104.1 255.255.255.0!interface Vlan2nameif outsidesecurity-level 0ip address dhcp setroute! interface Ethernet0/0switchport access vlan 2!interface Ethernet0/1!interface Ethernet0/2!interface Ethernet0/3!interface Ethernet0/4!interface Ethernet0/5!interface Ethernet0/6!interface Ethernet0/7!boot system disk0:/asa821-k8.binftp mode passivedns server-group DefaultDNSdomain-name default.domain.invalidsame-security-traffic permit inter-interfacesame-security-traffic permit intra-interfaceobject-group network DM_INLINE_NETWORK_1network-object 192.168.2.0 255.255.255.0network-object 192.168.4.0 255.255.255.0access-list outside_1_cryptomap extended permit ip 192.168.104.0 255.255.255.0

[code]....

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Apr 18, 2012

i am using RV042 router, i have configured DMZ in this,  DMZ is not passing the traffic, i am able to ping the DMZ ip from the server. but the server is not getting the Internet. 

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Jan 15, 2012

I have a site to site tunnel between two 5520 ASAs.  Tunnel is up but when I try to talk to the other side, the implicit deny on the inside interface of the local ASA blocks the traffic.  When I ping, the tunnel comes up but in the logs it says it is blocking icmp from inside to outside.  I have tried the sys opt connection permit-vpn but it is not working.  The traffic is from 5 specific machines within the local sub net that I put in a network object group called Celerra_Replication.

I want to them to be able to talk to 5 machines on the far end of the tunnel in a seperate sub net.  They are in a net wrok object group called GP_Celerra_Replication The ACLs I created for this appear to be created correctly allowing IP from Celerra_replication to GP_Celerra_Replication and the opposite on the other side. 

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Cisco WAN :: 2900 - Traffic Not Passing From One Interface To Another

Jan 15, 2013

I am facing a very big problem with site to site vpn on cisco 2900 ios.
 
I configured the vpn and when i ping  from router itself to destination ip with source as lan interface , VPN works, no problem.
 
but when i connect any computer directly to router's lan interface to initiate traffic , it doesnot work at all. and on computer's lan i see yeloow sign.
 
mtu is 1500, speed is auto (I tried changing also) , duplex is auto ( i tried changing also) , through firewall on pc should not affect but still i disabled it.
 
since their is no problem with vpn config as vpn comes up when i initiate ping from router itself but i dont know why it is not working from lan.
 
do we need any inspect icmp on this router also ? or any policy modification to pass traffic across the interfac on router is required ?
 
I was useinf c2900k9-15.0(M4).bin and i upgraded it to 15.3 which is lated to get reed of any bug .
 
I connected two laptops directly to router's gi0/0, g0/1 interface to ping from one laptop to another but this also did not work.

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D-Link DIR-655 :: Passing SQL Server Traffic?

Jan 24, 2012

I have a server with SQL Server 2008 on it.  It listens on the default ports 1433 & 1434.  But traffic is not making it through my DIR-655 to the LAN so that SQL Server can respond to the request.  I am using DynDNS and have confirmed that the traffic is getting thru DNS and finding the router, but after watching the syslog I can see that I'm getting multiple of the following error messages when a request is initiated from a client (Microsoft Access app) outside my network:

01-24-2012   22:28:24   System3.Info   192.168.1.1   Tue Jan 24 22:28:28 2012 D-Link Systems DIR-655 System Log: Blocked incoming TCP connection request from 67.167.87.109:53284 to 67.167.87.109:139 01-24-2012   22:28:24   System3.Info   192.168.1.1   Tue Jan 24 22:28:28 2012 D-Link Systems DIR-655 System Log: Blocked incoming TCP connection request from 67.167.87.109:53282 to 67.167.87.109:445

In Port Forwarding I have specified a rule to allow/pass port 1433 & 1434 TCP traffic to my internal server IP.

Also I'm confused by the ports shown above since I was expecting to see 1433/1434 in there...seems this is a factor in the traffic never getting to the SQL Server to process the request?

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Cisco Firewall :: ASA 5510 Ftp Traffic Passing On 1 Interface But Not Another?

Dec 20, 2011

FTP traffic routed from outside to the inside interface works fine.  I have another interface with multiple sub-interfaces and vlans configured.  FTP traffic routed from the outside to vlan2_servers is not making it through the firewall.  I must be missing something.  I have attached my config.

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Cisco Routers :: RV042 Stops Passing Traffic On WAN

Feb 12, 2012

We have a managed service provider voip network that requires us to use our own router for the data network. We wanted to use the RV042 for it's easy vpn setup. After installing it worked great for about 10 min. then the WAN port stopped passing traffic. 3 min. later it started working again. We tested the RV042 on a different network and it works fine. We tested an older Pix on the managed network and that works fine. But the RV042 will not work on the managed service provider voip network. The service provider says that on their end it shows our WAN port going up and down.

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Cisco Firewall :: Passing Traffic From Polycom Via 1812

Jun 15, 2011

We are trying to get a video conference system (POLYCOM) up running.  Thrue a Cisco 1812 router with Firewall feature set.
 
I  Have heard in the past that there should be issues with Polycom and Cisco, but have actually never seen it.I can establish a video call from inside the 1812 to outside.
 
But when I try from outside to the public ip adress there is nattet to, then it reach the video system and die straight after, so there is never any video session set up.
 
I have tried to remove everything regarding firewall feature and passing true, so the only thing the 1812 should do is NAT. And still the same.
 
I can not see anything in the log on the router from the ACL's where I permittet everything, other then it connect on the port TCP 1720, as it should. This is the software I'm running on the router:
 
Cisco IOS Software, C181X Software (C181X-ADVIPSERVICESK9-M), Version 12.4(15)T3, RELEASE SOFTWARE (fc1)
 
When I search Google, it look like there is a lot issues with Cisco and Polycom, but I have not found any concret solution. Other then I should use a ADSL line with a public IP address.  As we probably is going to do.

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Cisco WAN :: 2911 Not Passing LAN Traffic To Public Interface

Sep 23, 2011

We have a 2911 Router running 15.0(1)M4. G 0/0 is our LAN interface, and it has three subinterfacesG0/0.1 is our data LAN, and the gateway for our Windows machines.  This is the interface this question concerns.G0/0.23 is a separate LAN for various equipmentG0/0.192 is another LAN for equipmentG 0/1 is connected to the internet, and has a public address.S 0/0/0 is a T1 PPP, connected to our core data centerS 0/1/0 is a backup T1 PPP, again, connected to our core data center.There are three static routes entered:ip route 0.0.0.0 0.0.0.0 10.12.1.1 100 This is the first PPPip route 0.0.0.0 0.0.0.0 10.13.1.1 200 This is the secondary PPPip route 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx 255 It currently has a cost of 255 while i figure this one out. xxx.xxx.xxx.xxx represents the cable company gateway, which I can ping properly.  I've also used "gigabitethernet 0/1" in place of the next hop ip with the same results. The public interface is properly connected, and can ping it's next hop (the cable company gateway).  When I change the static route for gigabitethernet 0/1 to a cost of "0", the router can properly ping DNS names, such as google.com through the public interface. 
 
However, devices on the data LAN cannot reach any public addresses except for the router's public interface, let alone DNS names (I am using 8.8.8.8 as my test IP).  If I revert the cost back to 255, making the PPP the gateway of last resort, these devices can again connect. (they travel through the PPP to our Data center's internet) 
 
This confuses me.  If our server, on the same LAN as the router can ping the public interface (it's definitley not leaving the 2911, as latency is less than 1ms), and the router itself can ping outside addresses, what is preventing the router's public interface from passing traffic to the internet from any source other than itself?  I have attached our running config in the hopes that there is something obvious I'm missing (the public ip addresses have been changed so they are not exposed).  I simply want clients on our 10.23.0.0 LAN to get to the internet via the public interface of the local router, and still connect to corporate resources using the PPP links. MAS_2911#sho run

Building configuration... 
 
Current configuration : 5666 bytes
!
! Last configuration change at 01:47:50 eastern Sat Sep 24 2011 by redacted

[Code].....

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Jan 6, 2011

I run a network that uses MPLS circuits to connect all of the companies different stores.  Internet access is through a Cisco ASA5500 here at the corp headquarters.
 
To make all of this work, we use a little 1721 gateway router to move traffic as needed.   All the clients in our corporate office use 10.10.99.1 (Cisco 1721) as a gateway.  The 1721 routes the traffic either to the internet (10.10.99.106 Cisco ASA5500) or the MPLS router (159.61.54.30).
 
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I've poured over the config for that router, and I can't find anything that could be causing this not to work.  Thinking that the 1721 was bad, I put an 1841 online in it's place, and it did the same thing.   I'm a noob when it comes to Cisco configs, but am learning as I go along.
 
Ive attached a txt file of the 1721 config.

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Mar 7, 2013

Beta Firmware: 1.0.2.3
 
Web server log showing the issue:
2013-03-08 05:39:21 192.168.1.102 POST /somewebpage/somefile.htm - 80 - 192.168.1.1 - 404 0 0 6098 410 457
 
ISSUE: 100% of the traffic forwarded through the router is taking on the IP address of the router when it arrives at the web server. In this case, 192.168.1.1
 
My email server and FTP servers are having fits due to the anti-hammering issue that this creates.
 
I simply got the run around and they told me to call level 2 support and did not provide me with a contact number. For some reason, he refused to escalate the call. They simply told me to contact someone from a previous issue in which they gave me the beta firmware to download and I spent a lot of time on the phone to get that far. I do NOT want to speak with the same person who addressed my last issue.

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Apr 30, 2012

I need a ≥ 8 port layer 3 managed switch. What would be the cheapest solution for this?I've been looking at some stuff like Cisco 4908G, but that only supports 1000base-X. I need something that supports the standard 1000base-T. I've also looked at a Cisco WS-C3508G-XL-EN, but correct me if I'm wrong, this is only layer 2?

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