we have some devices on the network which cannot be secured and we need to isolate from the rest of the subnet.Our switches are Cisco 2960.Is it possible to via an ACL local a specifric port down to only allow traffic from specific MAC addresses? I've had a go at this myself but not been able to make any progress. The traffic type is TCP/IP.
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I need to make some changes on our network. We currently have two sites 150 miles apart we join both by way of fiber and on each side we have Cisco 3750 stack switches, configure trunking for all V lans on one port in site one then through the the long haul fiber to site two with site one using 10.1.1.30 and site two using 10.1.1.40 as their default gateway, with static routing all V lan sub nets to the other sites default gateway life is good.
My question - seeing how we have sites using the same sub net 10.1.1.x to trunk all data to each site through switches; we need to now change the network and add each site to the MPLS network, site one switch 1 IP address 10.1.1.30 going to MPLS router one with FA0/0/0 using IP 10.1.1.31, site two having switch 1 IP address 10.1.1.40 going to MPLS router one with FA0/0/0 using 10.1.1.41. I need to know will this work.
We have the same sub net in each site 10.1.1.x to the MPLS routers then the external router interface connecting each site to local switches, will this cause any problems by using the same local sub net for each site?
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We found out that only local multicast ip address range is not passing between the sites, any other range is passing, local range is 239.0.0.0 and above.
We have two different datacenters, the internal switch is 2960S (Stacked) with 1-10 vlans and the external switch is 3560E, the external switch is adding another tag (qinq, dot1q), vlan 611, and send the packets to metro line to the other site.
on the other site we have the same configuration.
internal switch from site A is configured with igmp querier and the internal switch port on site B connected to the external switch is configured as mrotuer port.
multicast and igmp is passig between the sites, but the local multicast range is not passing, igmp filterring is configured on all port but no profile is defined and no ports are filterred, on the external switch igmp snooping is disabled.
I am having a lab switch. Recently I am getting "%SCHED-3-SEMLOCKED: SNMP ENGINE attempted to lock a semaphore, already locked by itself" message and the switch has started to hang a little bit. I just want to know what this log means and how to trouble shoot.
I'm using C3750, version 12.2(25)SEE3
I have an existing stack of 4 x 2960-S switches connected by stack cables.I would like to add another 2960-S switch to the stack but am unable to as the 2960-S will only allow 4 x 2960-S switches per stack.how I would add the 5th 2960-S switch to the existing stack of 4 x 2960-S switches.
View 12 Replies View RelatedI have a 24 port 2960-S that is not communicating with a 2960-LST that it is directly connected to over fiber. The link is up on the LST but will not come up on the -S. What command should I use to bring up this link? I have tried no shut from the (Config-if)# prompt.
View 3 Replies View Relatedi have 2x 27 subet ( we will call first /27 fip and call second /27 sip) we assign sip subnet to our virtual machine and we do not want assign ip from sip to our physical node and we wan assign ip from fip subnet to our physical server, because we want sip can not spoof physical server ips, so when we create vlan in our switch we set port 1 and fip and sip subnet access to this vlan in this senario can my virtual machine spoof our physical node ip ? some one in my datacenter technical team told me we should create vlan for fip and create a seprate vlan for sip then set vlan fip and vlan sip access to switch port #1 is it right? if it is ok can some one give me the commands for this senario which create 2 spetare vlan and access them to port siwtch #1 for exaple? we have cisco 2960 48 port ,
View 2 Replies View RelatedI have 4 x 2960 switches in a remote site. These are managed by an NMS in our DC, the NMS IP ends in 35.100 with a /23 mask.
When they are first booted, the switches are visable to the NMS, but after a week or 2, 3 of them drop connection to it. If you reboot them again they are fine. You are able to log onto them form thier local router and use a Radius server which is in the same subnet as the NMS.
The odd thing is, whilst they can not ping the NMS, they are able to ping any other addresses in the 34.0/23 range.
The config on the one that does not lose connection is the same as the other 3 and I have also rebooted the NMS.
Got a shiny new SG 200 26P which seems to work fine operationally.owever, when I am trying to access the web interface from a different IP subnet, the web brower just times out.If I put my PC on the same IP subnet, it works just fine. From the other subnet, I can ping the switch fine. The default gateway is set on the switch, and from the web interface I can ping and dns resolve other hosts and on the internet. I've tried to create a management profile to 'allow all from everywhere' basically, but still no luck.I'm completely stumped. I've tried to reset to firmware defaults, and I'm now runinng the latest firmware. I woudl suppose that the switch would allow itself to be managed via the web interface from all subnets by default. Any thoughts? The fact that the switch can ping internet hosts makes be believe it's own default gateway and IP are all ok and working.. (and I can ping it from anywhere in my network).
View 4 Replies View RelatedGetting a lot of the following errors on our 5508 form the same subnet: 10.20.0.1 255.255.248.0 . I tried researching and not getting much.
broffu_SocketReceive: Jul 17 10:11:10.068: %DATAPLANE-3-DP_MSG: broffu_fp_dapi_cmd.c:2891 FP0.09:(7089389)[cmdAddIpv4:2921]failed to find ipv4 10.20.6.58
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I’ve configured a small WLAN for a school that wants to have wireless network access for their staff as well as for guests doing presentations. They want the staff to have access to everything on the 192.168.1.0 /24 network as well as the Internet. They want the guests to only have access to the Internet. I have attached a picture which shows how the network has been configured with 4 Cisco AP1242G AP’s attached to a Cisco SF302-08MP PoE switch and then to a Symantec Security Gateway to the Internet.
I can authenticate wirelessly to the STAFF SSID and ping anything on the 192.168.1.0 /24 network and access the Internet.I can authenticate wirelessly to the GUEST SSID and ping anything on the 172.16.1.0 /24 network, but not anything on the 192.168.1.0 /24 network (which is what we want). However, when on the GUEST network you can’t access the Internet. I added a default route to the Cisco 302-08MP switch to 192.168.1.1 (Symantec firewall) thinking that would forward the traffic from 172.16.1.0 /24 to the Symantec firewall out to the Internet, but that isn’t working.How would I go about getting the traffic from 172.16.1.0 /24 to hit the Symantec firewall and the Internet, without hitting anything else on 192.168.1.0 /24? Do I need to put the Symantec firewall in a different subnet like 192.168.2.0 /24? Am I missing anything else?I’ve worked with Extreme Networks & HP / 3Com CLI in the past, but never with Cisco and never with web based management
I have Catalyst C3750G switch
with configured route to subnet 192.168.201.0/24
ip routing
ip route 192.168.201.0 255.255.255.0 192.168.160.13
192.168.160.13 is accessible
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We have two switches; a WS-C3550-48 and a WS-C3548-XL connected via fiber uplink ports. Both switches are on the same subnet 192.168.1.0 /24. I would like to change the subnet of the second switch, WS-C3548-XL, to be on 192.168.2.0 /24. Would it be possible to assign 192.168.2.x IP addresses to both uplink ports to achive this?
Or would I need to create a separate VLAN and assign both GigabitEthernet0/1 uplink ports to this VLAN?
I have an issue with the device in subject. I need that some server, listed as service on CSS, can contact a content VIP on the same subnet. To allow that traffic I configured grouping on CSS (group 1) with vip address and an ACL that allow traffic from subnet 10.1.1.0/24 toward same subnet 10.1.1.0/24 and I have bound this ACL with sourcegroup 1. The nat and portmap works but never at first attempt, instead since second attempts it works. Seem like a CSS require to much time to create nat entry.
View 4 Replies View RelatedI have a customer who has an ASA 5505 that is handling the routing for their internal network. They are running out of available IP addresses on their subnet 192.168.1.0/24. They have dumb switches that don't suppport multiple vlans or trunking & they are only able to connect to one switchport on the ASA. He doesn't not want to purchase any new equipment or rearrange their existing equipment at this time. The customer would like to statically assign IP addesses for 192.168.1.x & 192.168.2.x and have the ASA hand out DHCP addresses for 192.168.3.x addresses. The customer suggested configuring a super subnet. A 192.168.0.0/22 address scheme would provide an ip range 192.168.0.0 - 192.168.3.255 on a single VLAN. I know this is an unconventional way to setup an internal network & I will definitely advise the customer that this should only be considered as a temporary solution until they get more appropriate network equipment.
View 3 Replies View RelatedI have forgot this technology name, but, I remember it can achive on between Nexus 7000s in two location, and also between two catalyst 6500.Can I ask if it can be done between one nexus and one catalyst 6500?
View 8 Replies View RelatedWe have 10 ADSL lines and 5 of them goes in the load balancer (One gateway) and the rests are used as default gateways for internet access. We use ADSL routers as access points for internet, but those routers should be part of our network and should be given an address in order for them to act as default gateways for internet access. I'm facing a real prob with the ADSL routers Linksys WAG54G2 because they doesn't support a subnet mask 255.255.0.0 Any recommendation for an ADSL router model that support a netmask 255.255.0.0 ?
My cisco 2811 router interface configuration ip address: 172.20.0.1 255.255.254.0.Load balancer output lan ip address: 172.20.0.5.My ADSL routers will be in the following range : 172.20.0.6 - 172.20.0.10
I recently bought SG-300 28P to create the VLAN. My network hs 3 subnet 192.168.1.0, 192.168.2.0 and 192.168.3.0.My main net work is 192.168.1.0. I want to divide it to VLAN to eliminate the boardcast storm; especially from the domain 192.168.3.0
But I want all the devices from 192.168.1.0 to access other subnet.
I need to configure the C3560-24TS, QoS control by IP or subnet.i tried to study books and videos many times but still feel i am not well known about QOs...
View 1 Replies View Relatedhow to know if my bgp neighbour advertised my network from his side or not ???
here is my config :
Gateway7600#sh ip bgp
BGP table version is 8, local router ID is 192.168.40.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found
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I am trying to modify the OSPF admin distance for a specific subnet under version 5.1(5) of the Nexus 7K, but this command does not appear to be available.
View 1 Replies View RelatedI have some questions about how to configure my Cisco 1941 with a routed subnet from my ISP to forward them to 1 or more servers in my LAN.1 Routed subnet /29 from my ISP (over a fiber connection).In my LAN I have (at the moment) 3 servers, and about 15 clients.I would like to use the first ip address from the routed subnet for internet traffic from all the clients in the LAN.I would like to use the second ip address from the routed subnet for server1 so that server1 accept some allowed connections and that server1 connects to the internet with the second ip address from the routed subnet
I would like to use the thirth ip address from the routed subnet for server2 so that server2 accept some allowed connections and that server2 connects to the internet with the thirth ip address from the routed subnet.I would like to use the fourth ip address from the routed subnet for server3 so that server3 accept some allowed connections and that server3 connects to the internet with the fourth ip address from the routed subnet.[code]
Have our public IP address space masked on /24 at our Internet Router. The router portion of 3845 connects to Internet, while the internal switch connects to my internal network and seeds it with the public address space. The switch had a port configured no switchport (L3) with an ip address with /24 (ie 67.63.145.1 /24) this connects to internal IPS/IDS then to Firewall which NATs to internal, then packet shaper, web filter etc etc etc. I need to test my ISP speed so I need to "break in" to the link between the switch and the IPS/IDS. I figured I could configure another port on the switch on the 3845 but my problem is the port to my network is routed and is masked on entire /24. I tried to configure a port on VLAN 1 and give myself an available address in the L3 address space and this did not work (figured it would not but gave it a try)
Any way to get two ports configured to use the same subnet while one is a L3 routed port and the other is just part of that layer 3 routed network?
I have a Nexus 7K router, has 2 ospf process, ospf 1 and ospf2. OSPF1 has several subnets in 10.1.0.0/16 subnet range , OSPF2 has several subnets in 10.2.0.0/16 subnet range. I want to summary OSPF 1 subnets to 10.1.0.0/16 then redistribute to OSPF2.but OSPF 2 didn't receive 10.1.0.0/16. Below is the config
ip prefix-list all seq 10 permit 0.0.0.0/0 le 32
route-map all permit 10
match ip address prefix-list all
router ospf 1
router-id 10.10.3.9
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I have a very problematic situation here.I have configure on a Cisco 2960 the vty line in a wrong manner and now I am stock.To configure those vty to enable ssh I have typed :
line vty 0 4
login local
password xxxx
line vty 5 15
login local
password xxxx
exit
Problem, I work remotely (I was on telnet while doing this). I have no username configure as I thought that root user would work.Now when I issue an ssh to my switch, I always failed authentication.how I could recover access to my switch without being physically there ? I have write the config in memory, otherwise it would have been too easy.
My management has tasked me to give them a high level overview of the different switching we can choose for our new building.
This is what I know so far.4 Closets, each closet has 450 ports,One MDF room that is will contain one UCS Chassis and a Nimble iSCSI SAN.
I am working on the spreadsheet and it looks like this (Not totally filled):
2960s3560x3750x45064510Approx cost (Each, 48PORT, POE+, 10G uplink, Dual PS, IP BASE)
6K7K8K45K75KMax Capacity192432432192384Backplane speed206464520520ProLeast ExpensiveStackable to 9Stackable to 9ProDual PSDual PSDual PSDual PSDual PSProLayer 3 opt
Layer 3 optDual SupsDual SupsConExpensiveExpensiveConNo Dual PSConLayer 2 OnlyCannot stack more than 4
For the MDF I would like to use 2 Nexus 5548's with FEX's, and the layer 3 daughter board. For the IDF's I was thinking of two 4010's.
I recently installed a couple of Cisco Aironet 3600 Series Wireless Access Points at a remote site. While I was at the site everything seemed OK, The clients were able to get connected to the access points, the guest network worked fine, I could SSH into the access points, and I could ping them. The problem is when I went back to my home site I tried to SSH into the access points through an ASA IPSec VPN Tunnel and it couldn’t find it. When I try to ping the access points they “time out”. I can ping and connect all other addresses (via RDP, HTTP, etc..) on the same subnet which should rule out an access list problem. A couple of notes to be aware of:
The WAP’s have the Autonomous IOS installed (Version 15.2(2)JB) The WAP’s are connected to Dell PowerConnect 5724 (Not by choice.. We are a Cisco shop, these were already there and have plans this year to replace)
I can ping and SSH with Putty to the WAP’s from the local subnet I cannot ping or SSH from a remote subnet to the WAP’s. I can access all other IP’s and Computers from a remote subnet.
I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)
View 5 Replies View RelatedI have a Cisco SG 300-20 as the core switch, layer 3. It is 192.168.4.6 on VLAN1 and 192.168.5.1 for VLAN2 (VOIP). All the ports are set in trunk mode. DHCP relay is setup on this switch.
The phones connected into a layer 2, Catalyst 2960-S switch. All ports are set in trunk mode. Default gateway on it is set to 192.168.5.1.
DHCP for both VLANs is provided by a Windows Server 2008 R2 server (the relay IP 192.168.4.15).
There is also an ASA 5510 in the mix which is 192.168.4.1. It has a route added to it for the 192.168.5.0 network to go to the SG 300 (192.168.5.1).
Just the two switches can ping each other on the 192.168.5.x network when I "add vlan 2" to the trunk port that is connected between the SG 300 and the 2960. The phones don't get DHCP on the 2960 switch. And I cannot ping 192.168.5.x from the ASA or anything else on the 192.168.4.x network.
After a bit of reading on intra-vlan routing for the SG 300 switch, I am thinking the SG 300 has to be the "center" of things so I need to make it 192.168.4.1 to be the gateway for both VLANs and change the ASA to 192.168.4.2 for VLAN1, etc. And I really can't do asymmetric routing with this switch.
Does the Model "WS-C2960-24PC-L" Supports IP Routing or not?
View 9 Replies View Relatedsee the attached diagram to explain the network. I'm trying to do a "port-to-port" layer 2 connection on an ASR that will bi-directionally bridge a physical interface to a sub-interface. I tried using " connect VLAN200 Gig0/1/0 Gig0/0/3.200 interworking ethernet " but I'm not getting traffic through the connection.
I don't think BDI will work because it requires a Layer 3 point. I have to make this Layer 2 switching.
I'm having a strange problem where I'm not able to get through a Cisco 2960-S L2 switch when connected through vpn, while LAN-WAN traffic is working fine.The situation on site is the following:When inside the network I'm able to get to the internet without a problem. The problem is within a vpn-session. When this session is succesfully started I can ping and manage the Cisco 2960-S switch, but I can't ping or manage the Dell switch from my laptop. I can however ping the Dell from the Cisco-switch. [code]
View 7 Replies View Relatedset up my QoS on two 2960
-------------------- ------- ------- ------------
PBX Asterisk |----|2960-1 |------|2960-2 |-----|Voip client2|
-------------------- ------- ------- ------------
-------------- |
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This will be this configuration for all input interface right ? For the Output part I'm lost, what do I have to do ? And for the 2960-2 do I have to put the same configuration ?
