I'm currently trying to come up with an ACL to prevent the nachi virus killing the network (as I'm sure many administrators are) and was looking for help with a particular access permission.
I work in the IT dept at the main office and I'm creating an ACL that will prevent most nodes on the network from sending ping packets to each other, only I have to create a permission that will allow all members of the IT dept, who are on a specific subnet, to be able to ping any node one of the remote LAN's, which will confirm connectivity in the event of a problem.
The subnet uses the class A private address 10.2.6.0, although there is only six nodes on this subnet. I want them all to have ping permission to the remote LAN. So I have created permission on the local router so that it will allow ping packets from these addresses to be able to ping anywhere, but the remote router won't allow a reply. I'm sure I will have to place the ACL on the ethernet interface (inbound) on the remote router and may have to include 'echo-reply', only I'm just not completely sure what the permit statement will be.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
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