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ACL to only allow Internet

I would like to setup an ACL to only allow, Internet,DHCP,DNS. No inter vlan routing. Would the following work?This will be on a pair of 7k'sThanks for your Help!Gregip access-list Internet_Onlydeny ip any 10.0.0.0   0.255.255.255deny ip any 172.16.0...

HwGregg8 by • Level 1
  • 4631 Views
  • 2 replies
  • 2 Helpful votes

Can't resolve DNS in PC through CISCO 2811

Hi to everyone I have a Cisco 2811 that can ping and can resolve domain names (like "www.google.com")I'm my PC connected to the 2811 I have "Internet connection", but yet, I'm not able to browse any site.I can ping with CMD to Google's DNS 8.8.8.8, 4...

Fabiola by • Level 1
  • 607 Views
  • 2 replies
  • 0 Helpful votes

EIGRP static map ip command on Frame Relay

refer : https://www.cisco.com/c/en/us/support/docs/wan/frame-relay/16563-12.html#topic2 I have a questionDo we need to configure static map ip command when interface is point-to-multipoint subinterface only?because as I read the document, There are n...

Port channel not working properly

Hi guys. Help would really be appreciated on this.We have a Port-channel with four GE ports bundled. However, only one port is working for input traffic.Check this: Herkul#sh int GigabitEthernet9/1 | i bits5 minute input rate 534385000 bits/sec, 5191...

Active Ethernet Implementation and GPON on the ME4600

I don’t know the difference between Passive and Active implementation of the Optical Wan interface of the ME4600. And Active Ethernet is supported  in this device ?User manual has not mentioned about active solution.  Please Help me because i want to...

support by • Level 1
  • 422 Views
  • 0 replies
  • 0 Helpful votes

Resolved! Big fat CS1 (Scavenger) is dropped, small lean BE is not. What is happening?

Hi there everyone, I was wondering why packets assigned to a CS1 class are being dropped while there are no drops in class-default. The funny thing is: I provide more bandwidth to the CS1 than to the Default! According to the gut feeling, books and t...

Cisco router 1812 cdp neighbor issue

Hello there, im facing an unfamiliar issue with router 1812, and don't know if it was an issue or not, but it does not make any sence.the router has ports fastethernet 0 and 1, and on switch card ports fastethernet 2-9.port 0 is configured as point-t...

a.ali by • Level 1
  • 713 Views
  • 5 replies
  • 0 Helpful votes

Site to Site ASA to IOS with ZBF

I am trying to get a Site to Site VPN functioning between an ASA running 9.6.3 and a 2911 running 15.2. The 2911 is using the zone-based firewall. When I setup a basic policy-based IPSec tunnel, traffic only goes from the 2911 subnet to the ASA, not ...

wl_3315 by • Level 1
  • 567 Views
  • 4 replies
  • 0 Helpful votes

Resolved! Route map - empty clause

Hi all,  i have a question with config below: Scenario 1: ip access-list standard Outbound_to_ISP1(empty) route-map ISPLocalPref, permit, sequence 20Match clauses:ip address (access-lists): Outbound_to_ISP1Set clauses:local-preference 110route-map IS...

Roel Reyes by • Level 1
  • 12033 Views
  • 4 replies
  • 0 Helpful votes

what format do i need.

I am curently trying to update an IOS on a 3945 cisco router, it has not been updated since 2011. I cant use a tftp server so I am using a 32g thumbdrive. I upload the flash from the usb to flash0: and change the boot system. I save the cofig and the...

mpls mtu override

Hi All,I have some doubts on "mpls mtu override" ,What exactly does this command do "mpls mtu override" ????If I have default MTU 1500bytes and configure mpls mtu override 1512, will there be any problems like dropped packets, data corruption, and hi...

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