Activity in Technology and Support
DHCP relay with NAT, DHCP server sending DHCPOFFER to wrong IP
I configured NAT and DHCP relay in GNS3, and all hosts have end-to-end reachability, I can ping PC44 from PC11 and PC22, and also from PC33 if I configure a static IP address.On the NAT router (R11), I also configured DHCP relay with 'helper-address'...
Help with dynamic routing
Why I cant send packet to same vlan on the different router ?
FMC IP fragmentation to no fragmentation settings can couse outage?
Hello everyone, I have the following issue:The customer would like to disable FMC packet fragmentation globally. According to the Cisco documentation it is quite straightforward.Source chapter: Fragment SettingsCisco Secure Firewall Management Center...
AP issue
Hello we have a local 9120axi AP with a 9800LC WLC that seems to be losing connection. The AP is in flex connect, all config looks fine: AdvancedCountry CodeUS Multiple CountriesUSStatistics Timer180CAPWAP MTU1485AP Link LatencyEnabledAP PMK Propaga...
VLANs cannot access internet
Dear all,I am configuring a network cfomposed of 4 VLANs with the following devices:- NetGate 6100 Firewall- A Cisco 2951 Router- Ciscon 2960 SwitchVLANs and DHCP were configured on the 2951 router.Note that NAT function is handled by the Firewall.Af...
Equivalent Command for 9800
A simple question....If I just knew where to find the answer:Doing MAC authentication on an 5520 WLC, I can see the MAC addresses accepted by the WLC if I issue the command:"sho macfilter summary"Can anyone tell me the equivalent command on a 9800 (y...
VLSM with Inter-VLAN routing
Hello,Studying for my CCNA and I thought I'd practice some basic configurations, such as router on a stick. I setup 4 PC's (each representing an imaginary number of hosts) each with a vlan attached to a switch leading to a router, with the link betwe...
Extended ACL inbound and outbound
Good morning friends,I have created two extended ACLs for in and out of my int vlan and applied it under int vlan for both directions inbound and outbound. I have created ACLs entries like this.For int vlan no. Out1 permit ip 10.1.0.0 0.0.255.255 hos...
ucs 6454 40G uplinks to core and port channels
hi i am trying to cable up trhe ucs 6454. I got 2 40G mopdules on port 53 and 54 on each fabric. I got 2 core switches to connect therm to FABRIC 1port 53 ----> port 1 on Core switch APort 54 -----> port 1 on Core Switch BFABRIC 2port 53 ------> port...
Controle planes in vPC
I have a doubt that how two controle planes will work in vPC and what are the real time scenarios to see the two controle planes vPC. Can any one help me to understand exactly how two controle planes works compared with single controle planes in VSS ...
Allow ISE captive portal DNS entry on outside DNS.
Hello,We are having ISE for EAP/TACACS authentication and, hosted internally in our datacenter.Now we have configured BYOD captive portal that tied to AZURE SAML authentication, the current captive portal redirect URL from ISE has prepended the node ...
Resolved! Best practice lan configuration
HiI have 4 Cisco 2960 switches and 3 unmanaged switches. All are connected via fiber cable to a core switch 4503-3 and it is connected to a VPN router and internet router. (still don't have access to the routers yet)I know I have to replace the unman...
Redundancy Over VSAT Link
Hi, we have a WAN and VSAT connection to one of the site. WAN is primary and VSAT is secondary link.We have dedicated router for WAN and VSAT. VSAT link is connected to one of the LAN access switch.Could you please help me, what kind of configuration...
Joining ISE to a Reversed DNS Zone
I have joined ISE on the same reversed zone as 50.168.192.in-addr.arpa (ise1.srvcore.local), but ISE have an address of 192.168.99.35.ISE could resolve and ping DNS domaine names on Windows Server and could PING its name "ise1.srvcore.local" and can ...
NTP and Syslog packets with specific IP Address
Hi All,I have a couple of C9300 L3 switches that are connecting to an ASA firewall. The NTP and the syslog server for the switches are located behind a firewall.When one of the switches request/send packets the gateway IP is the source address on the...
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