Top new questions this week:
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I came to know recently IPv4 public IP address pools are going to be exhausted soon. If IPv6 addresses are fully in use, all device vendors like Cisco, Fortinet, Palo Alto have to redesign their ...
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I am working on network lab designing topology. I am able to configured two routing protocols which surprised me. I configured RIP and OSPF routing protocols in layer3 switch and advertised same ...
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I have multicast hosts that keep leaving a group, only to join back up which results in loss of video feeds.
The network consists of a variety of Cisco 2960's and a Cisco 9300 w/ PIM Sparse mode set ...
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When we say network automation, what "automation" are we talking about? What is that being automated?
I've heard that in network automation we do not have to configure each individual ...
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For example:
router(config)#ip access-list extended 101
router(config-ext-nacl)#10 per icmp any host 192.168.1.10
From second command line, how to write a command permit icmp any host range ...
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I have two sites connected by a T1 circuit.
Currenlty I have only a single router on both ends, but I would like to add redundantcy, HSRP, GLBP, or simular in case a router fails (see picture). Is ...
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On Cisco devices I'm looking to enable some filtering for one specific vlan (id 110).
Here is my config : (192.33.57.177 is the DHCP server host)
ip access-list extended VLAN110-DHCP
permit ip any ...
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Greatest hits from previous weeks:
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What's the difference here?
Are stateful IPv6 entries retained in the DHCPv6 server?
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I think I might be getting confused with terminology surrounding MTU.
This definition from Wendell Odom's CCNA book on MTU:
The IEEE 802.3 specification limits the data portion of the 802.3 frame ...
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I understand that IPv6 reserves the fe80::/10 prefix for link local addresses, and that hosts select an address with a /64 prefix.
Why is the reserved space so much larger than what is actually used ...
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Given that spanning tree has failed (or you don't have any spanning tree) and get an ethernet loop, what's the best way to diagnose where the problem is?
Which switch?, which cable? and so on.
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DHCP uses UDP as its transport protocol. DHCP messages that a client sends to a server are sent to well-known port 67 (UDP—Bootstrap Protocol and DHCP). DHCP Messages that a server sends to a client ...
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I've tried to log in to this device by doing the following.
Default credentials
username: admin
password: <none>
Maintainer credentials in the FortiExplorer console interface.
username: ...
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Example:
IP: 128.42.5.4
In binary: 10000000 00101010 00000101 00000100
Subnet: 255.255.248.0
How could you determine the prefix, network, subnet, and host numbers?
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