Cisco Switches :: How To Configure Dynamic Inspection For 300 Or 500 Series
Mar 6, 2013How config dynamic alp inspection for 300 or 500 series ? I find in admin guide it's no simple to do.
View 8 RepliesHow config dynamic alp inspection for 300 or 500 series ? I find in admin guide it's no simple to do.
View 8 RepliesI have a SG300-28P switch. I just read in the Administration Guide that, when in Layer 3 mode, the switch doesn't support MAC-based VLAN or Dynamic VLAN Assignment.
So, in order to assign a client to a VLAN based on their MAC or based on the response of a RADIUS server, we have to disable layer 3 features. Without layer 3 switching, the switch is unable to act as a default gateway and forward packets between VLANs. As a result, the VLANs can't communicate in any way, or access the internet, unless a separate router is connected to every VLAN. Right? Doesn't this limitation significantly reduce the usefulness of the DVA feature?
I have a network of 3750's configured for DAI with DHCP Snooping implanted and working with windows XP for around a year. Now we've changed a couple machines for windows 7. I have a floor with around 200 workstations on XP and about 4 on Seven.Two of these WIN7 are triggering the err-disable for arp inspection (configured by default to block interfaces sending over 15 arp pps) I noticed that when I go on windows -> network and I do a refresh, sometimes (most of the time after boot up or idle time) it will trigger the massive arp response on the network. I noticed that all hosts on the network updated their arp entry for that computer(win7) at the same time, for some reason I don't know. The windows 7 tries to reply over fifty arp requests for its IP which caused the port to be put on err-disable.There were no applications running on the windows7 computer at the time of the tests, only wireshark and its default services.This computer has configured:DHCP with WINS Its on a windows domain has netbios over TCP.
View 1 Replies View RelatedI need to allow traffic between webserver in dmz and mssql (Microsoft SQL Server 2008).MSSQL use dynamic port (now it is 63796) and this cannot be changed.
Basically, I can allow such traffic using next configuration:access-list dmz extended permit tcp host 1.2.3.4 host 5.6.7.8 eq 1433access-list dmz extended permit udp host 1.2.3.4 host 5.6.7.8 eq 1434 access-list dmz extended permit tcp host 1.2.3.4 host 5.6.7.8 eq 63796
But, I would like to add mssql inspection and I did the next:
class-map class_sqlnetmatch port tcp eq 1433policy-map global_policyclass inspection_default inspect dns preset_dns_map inspect ftp inspect h323 h225 inspect h323 ras inspect ip-options inspect netbios inspect rsh inspect rtsp inspect skinny inspect esmtp inspect sqlnet inspect sunrpc inspect tftp inspect sip inspect xdmcp class class_sqlnet inspect sqlnet service-policy global_policy global
[Code] ..........
I have enabled IP DHCP snooping on a 24 port 3560 switch (v small office) and let the database fill up, now I have added dynamic arp inspection on the single vlan and I amd getting these errors.
Apr 23 16:15:34: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Fa0/5, vlan 1.([5835.d9b0.b9d1/172.30.5.2/0000.0000.0000/172.30.5.3/16:15:33 BST Tue Apr 23 2013])
Apr 23 16:15:39: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Fa0/8, vlan 1.([0004.f2be.55e4/172.30.5.5/0000.0000.0000/172.30.5.8/16:15:39 BST Tue Apr 23 2013])
Apr 23 16:15:40: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Fa0/8, vlan 1.([0004.f2be.55e4/172.30.5.5/0000.0000.0000/172.30.5.8/16:15:40 BST Tue Apr 23 2013])
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I want to configure IEEE 802.1x port-based authentication on cisco switches, preferable 2960 series. Which models support this feature?. I have try with some older switches but it doesn't works properly on everyone. I have upgraded them whitout better results, there is namely an issue with TLS handshaking on some switches which produces authentication to fail.
View 1 Replies View RelatedAm trying to do a dynamic configuration of a 3900 series router (3925 to be precise).For the software and licenses, under the IOS technology Package Licenses, what's the significant of SL-39-DATA-K9 and SL-39-SECNPE-K9? Are they really necessary for the router?
View 3 Replies View RelatedDoes the 22xx Series FEX support static or dynamic LAGs between itself and a server?Imagine a server with dual 10G NICs, and I need to connect them to the SAME 22xx FEX....can I set up a LAG between the two 10G NIC ports and two 22xx FEX Host ports? Does it depend on how the FEX is connected to the parent 55xx?
View 0 Replies View RelatedI have configured a cisco router 877 to run the Dynamic DSL. However, it cannot work, the ATM 0 interface cannot be up . Here is my configuration:
version 12.4
no service pad
service timestamps debug datetime localtime
service timestamps log datetime localtime
no service password-encryption
[code]....
I have an Internet link, connected to my Cisco Router. The package I subscribed for comes with a dynamic IP Address. I was told, if I need to remote access into the Cisco Router, I need to enable the DDNS feature. Can this be done on a Cisco Router?
View 1 Replies View Relatedhow to configure the Cisco 1941 router for PPPOE with dynamic IP
View 10 Replies View RelatedI have a stack of 6 switches and I want to add another over the gbit connector using fiber. I already connected but I can acces the network from the new switch. I don't have any issues on my Stack all resources are available Do I need to do some special setup or connection to enable this? Can be stacked like the others? I already usen the 2 stacking port can i Add another switch?
View 3 Replies View RelatedBasically I have an internet router (1841ISR) with 1 internal (LAN) connection and 2 internet connections. What I want to do is route specific traffic for 3 of my internally hosted services (smtp, https, etc) through one internet connection (fa0/0) and then route all other traffic through the unmanaged/dynamic IP ADSL connection (Dialer 0).
View 9 Replies View RelatedCisco RV042 Dual WAN VPN Router -how to configure dynamic DNS without having to use the pre-programmed DDNS companies that are populated by default if my DDNS company is not listed and you cannot manually enter another company that is not on the list?
View 1 Replies View RelatedHow to erase or remove configuration file from ESW 500 Series Switches?
View 2 Replies View RelatedI need to configure an existing 2600 router to use dynamic NAT for access to the web and ALSO I have (5) fixed IP addresses for use with an email server, a web server, and (3) future servers. I do not know the concept of how to set this up. I'm currently using dynamic NAT for the web and this seems OK but I dont know how to map my fixed servers. I assume this is done with static NAT. Do I need to add sub interfaces on the S0/0 T1 interface for each of these fixed IPs? Then do I somehow do static NAT on these fixed IPs to their respective servers?
View 14 Replies View RelatedI am using several SG300-28 Switches with firmware version 1.1.2.0.I have dynamic VLAN enabled. As RADIUS server I am using free radius 2.1.12.Authentication is only based on the MAC address. (I configured that on the switches)On the switches I created three VLANs. VLAN100 for the authenticated clients, VLAN200 for Management interface and VLAN300 as Guest VLAN. After a wrong authentication the clients should be put into this Guest VLAN immediately (I configured this on the switches). I am using Windows XP and Windows 7 clients in my network. I did not configure any EAP settings because I just wnat to use the MAC address.
In most cases the dynamic VLAN assignment and authentication is working fine. The switch log says that the client is authenticated and the same I can see on free radius log. But in some (rare) cases the client is rejected. The CISCO log says "MAC aa:bb:cc:dd:ee:ff was rejected on port ge17" but when I look at the free radius log then this MAC address was successfully authorized.
The problem is that the client gets an IP address based on the Guest VLAN300 but after that the switch seems to "switch" the VLAN on the port and then the client is authenticated correctly on the right VLAN but the client does not request a new IP on the new VLAN. If I unplug and re-plug the LAN cable in most cases the client get the correct VLAN and the correct IP. This is happening randomly on nearly all my PCs.
Do I have to set some timers higher ? I don't think it is a problem between switch and RADIUS but a problem between communication of the host and the switch.
how to configure Qos on Cisco ME 3600X Series switches. As I tried Mls Qos and it wont have these commands.
View 1 Replies View RelatedI have very little practical knowledge of routers, switches and AP's. I recently got a very old Cisco Aironet 1100 series AP which was working fine in one network. I reset it and tried configuring it in new network (uses DHCP to assign public IP) for school use. But not able to access internet.
View 3 Replies View RelatedCurrently 2811 series router is configured for site to site VPN, CAN I configure USER VPN on the same box. We want Users to connect to VPN Server using Cisco VPN Client. best authentication method for USER VPN
View 1 Replies View RelatedHow to configure HSRP in techroutes 2600 series router and aaa authentication
View 2 Replies View RelatedWe are using cisco ME 3400 E series switch. Which port we can use as CFM port ? We configured CFM in gig port.Is all the ports will act as CFM port or any separate CLI command is there for enable ?
View 0 Replies View RelatedI have a Cisco 881 router running 15.1(4)M4. I am trying to configure SPAN on it to mirror my outside interface (source) to one of my LAN interfaces (dest).
!--- WAN interface
interface FastEthernet4
description Comcast WAN$ETH-WAN$
[Code]......
As you can see from the above output there is a problem with the command on this interface. When I try to set Fa0 as my source it works fine:
rtr(config)#mon session 1 source int fastEthernet 0
rtr(config)#
Is this because fa4 is layer 3 and fa0 is a switchport? If so, is there another way to set fa4 as the source?
Is it possible to configure Easy VPN on brach side which has 877 series router and ADSL connection for internet such a way that for internet traffic it will use the local ADSL line and for the server in HQ it uses the tunnel.or for internet also it will go thrugth tunnel and uses internet link at the HQ?
View 3 Replies View RelatedAny info on how to configure dynamic-pinning, instead of static pinning on a Nexus 2224 connected to a 7009?Can't seem to find anything on CCO!
View 9 Replies View RelatedI have 3750 series with GIBICs ports I want to create 10 vlans with its sub-net and enable all vlans to access internet.
View 4 Replies View RelatedI have two SG300 serie switches and two Gigabit connection between them. How do I configured these two links to work toghether like a one 2 Gigabit channel?
View 2 Replies View RelatedIs there a way to configure a 28xx series router with a HWIC-AP card as a wireless client instead of a wireless access point? There isn't a network drop in the location that I need to place a router, but there is an active Access Point that reaches the area.
View 1 Replies View Relatedhow to setup 802.1x on the Cisco 500 Series Switches.I have done the whole implamentation in the past with Catalysts and ACS.But would like to see a guide for the 500 series.Do we need the Cisco ACS or can we use RADIUS on Windows?
View 1 Replies View RelatedLooking for Information about Latest IOS Available for switch Series 3560, Guide the latest IOS sopprted Features Specification And Also Guide the Switch Minimum Hardware capacity Require to upgrade with the latest IOS.
View 2 Replies View Relatedwe are trying to do an automatic backup of our switches config trough snmp.my script can easily backup cisco 2950-2960-3550-3560 using snmp.but I dont know the mib to use to backup the cisco small business serie 300 switches.
View 6 Replies View Relatedwhat the intention behind adding SSH to the SG200 series switches was. Is it to allow SCP copies to and from the switch for configuration and firmware updates OR is it to allow CLI access to the switches.
I have tried to SSH to the switch using PuTTY from Windows and native SSH from Linux/Unix clients, but nothing happens.
Is there some other area of configuration to enable communcation via SSH?
Am I correct in thinking that 200 series swiches now support SNMP using v1.3?
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