New answers tagged

0

Cisco switch catalyst 2960 is layer2 switch . The command you used is not compatible with layer2 switch for Configuring trunk port . Gig0/24 with switchport trunk encapsulation dot1q and switchport mode trunk Instead of above command , use below command Switch(config)#int Gig0/24 Switch(config)#switchport mode trunk Switch(config)#switchport trunk allowed ...


0

If configured/allowed you could use ssh or telnet to connect remotely to your server from your pc. ssh -l <login name> <ip address> or telnet <ip address>


0

Stacking features helps in increase Switchport and redandency capabilities Power stacking cables Power stacking cable connecting two switch help power redundancy between switch . If primary switch power fails ,still primary switch get power from secondary switch through power stacking cables . Switch stacking cables When both primary and secondary switches ...


0

TFTP server can be used to copy Configuration from device to pc Install TFTP server on pc and and connect console cable to switch allocate management ip address to switch #copy running-config TFTP Can copy Configuration from switch to TFTP server installed on PC #copy TFTP runing-config This above command allow us to restore Configuration from TFTP to switch ...


0

Your Configuration clearly shows natting . In router portforwarding can be managed by Access-list Portforwarding is allowing access to resources on another networks behind firewall Firewall act as a border between two networks portforwarding ensures accessing resources on other networks Configure policy in security device Source ip address Destination ip ...


0

Dns name resolution (DNS) Hence computer always goes with numbers , but it's quit difficult remember numbers by humans to overcome this issue DNS concept is introduced Dns maps domain names to IP address Example.com => 211.X.X.X There are two types of DNS querries Recursive querry iterative querry => Recursive querry reslove domain names within local ...


-1

If we are having 24 port switch then each port is equipped with mac -address . Mac -address is layer2 contruct . To forward packet from layer3 to layer1. Layer2 acts as mediator hence frame is forwarded from layer2 to layer1 and layer2 to layer3 on basis of mac-address table . Mac -address table maps Mac-address to switch ports Switch(config)#show mac ...


0

You can not create saparate Vlans with same subnet , it is not feasible .. To accomplish your requirement Configure different Vlans with different networks subnets . And to ensure communication among this different VLANs Layer3 device is required to enable routing between different Vlans .


0

Given the customer of yours is a single ASN with a /24 prefix, it would be in your best interest to simply apply a prefix-list (Always better to assign the prefix-list within a route-map to allow further attributes to be set on ingress (local pref, communities, etc)) to your customers session. Here is an example route-map you can apply to your customers ...


0

In networking world there are different types of IP address Management ip address 1).This ip address is assigned to device . This ip address is used to access the device Interface assigned ip address are used to configure for actually data flow in networks .


0

Taccas server will always be in sync with organization LDAP server. Let assume cisco switch is login from taccas server TACCAS ip address Configuration need to configure on cisco switch when user is entering login credentials, authentication request traffic will forwarded towards TACCAS server . TACCAS server will validate credentials of user . Because ...


0

Excluding default gateway is not required on DHCP Configuration ip dhcp excluded-address 192.168.0.1 192.168.0.4 delete above command from DHCP Configuration . Beacuse default -gateway status is already mentioned in DHCP Configuration ip dhcp pool accounts network 192.168.0.0 255.255.255.0 default-router 192.168.0.1


-1

Small-scale BGP customer prefix filtering At this small scale, manually configuring a prefix-list for your BGP customer is appropriate. What larger transit networks do Larger transit networks consume IRR database(s) (RADB FAQ link) to automatically generate such prefix-lists. However, for just one BGP customer having one prefix-list entry, that kind of ...


0

The presentation you quote from (I could only find one, not many) is aimed at ISPs. They have different requirements and circumstances than enterprise networks. In this case, The ISP is using the IGP for its internal routing, and using BGP to carry its customer routes. These routes are kept separate -- internal equipment doesn't need to know about customer ...


0

You cannot accomplish this requirement until and unless router is deployed in setup . Because by default same Vlan hosts can talk to each other without any routing . But to ensure communication between different Vlans routing is required to enable routing layer3 devices is mandatory . inter-Vlan routing need to configure on router by creating sub -interfaces ...


0

Yes ! Vlan 10 connected host on different switch communicate each other . But following Configuration is required on switches Ensure both switch connected with access ports and allow Vlan 10 In Switch1 Swith1(config)#int ethernet 0/0 Switch1(config)#switchport mode access Switch1(config)#switchport access vlan 10 Switch1(config)#no shutdown Switch2 Swith2(...


0

The best and possible option are connect two networks with point to point leased line and Configure static route on both sites connect two networks with ISP can configure IPsec site -Site tunnel to smoothly exchange traffic between two sites . 3 ) connect two networks with ISP can configure ipsec- GRE tunnel . Even natting can be done at both ends to ...


0

If it's is souce nat translation then source private ip address is translated to natted public ip . So in cisco router "When debug nat command is on " Logs will reflect lan subnet ip address to translating natted public IPaddress. For destination nat scenario will be quite reverse . Logs will reflects public ip address translation to natted private ...


0

Firewall is more likely is security devices . But router is more operational for routing traffic . Some of the ISPs runs border gateway protocol (BGP).So router can run BGP more efficiently for establishing connectivity with ISP . By deploying firewall behind router additional controlling of inbound and outbound traffic can be done on edge router device by ...


0

No ! Generally access -list is configured in such way that outbound traffic initiated from LAN subnets only Assuming LAN subnet ip pool is 10.40.1.0/24 Then access list would be Router(config)#access-list 100 permit 10.40.1.0 0.0.0.255 any Router(config)#ip nat inside source list 100 interfàce gigabit Ethernet 0/0 overload So there will be no untranslated ...


0

In next generation firewall ,we have feasibility to limit bandwidth utilization of specific users with respect to time . Bandwidth can be controlled to maximum extend using this features .


0

There is no changes in Configuration part when Configuring trunk port on switches whether switches are connected with fiber cable or copper cable or any other topology they fallow. There is no any specific rule or method, only thing need to be considered is if switches are connected below 100 meters copper cable can be used example cat5e,cat6,cat6e. If ...


0

Wireless controller and access point are depends on each other . In real time world access -points are used to provide signal to devices for accessing internet using wireless medium . When user is moving across different access-points locations users will face network interruption due to hand-0ff issue To overcome this technicall draw back wire controllers ...


0

Major Stack Protocol Version Number Incompatibility Among Stack-Capable Switches Switches with different major Cisco IOS software versions usually have different stack protocol versions. Switches with different major version numbers are incompatible and cannot exist in the same switch stack. Minor Stack Protocol Version Number Incompatibility Among Stack-...


1

The data sheet for that device claims "Multiple DHCP Servers support, DHCP relay." That means that it should do what you want. You need to set up a DHCP scope on it for each VLAN, then you need to set up the DHCP relay (ip helper-address) on the layer-3 SVIs of your Cisco layer-3 switch.


0

As per Configuration provided , it is directly connected networks no manually static route Configuration is not required . When network is directly connected networks route is automatically creates in layer3 devices . Moreover subnetmask used is 255.255.255.252 has only two usage ip address 192.168.4.1 &192.168.4.2 , ip address. 192.168.4.1 & 192....


1

You seem to be missing one redistribution, which is on R2 where you redistribute BGP to RIP and vice versa. R3 does not know how to reach R0. Routing protocols do not automatically share routes with each other. You should use the show ip route command on each router to see the networks that each router knows how to reach.


0

R1 and R3 require a route back to 192.168.3.0/24 via R2. Without it, they use their default route towards the Internet for the echo reply. You need to either add the route statically or configure a routing protocol like OSPF.


4

TCAM has lots of restriction regarding region. ifacl and qos can't be used for IP slice so that is out of picture. now i have only following option left Redirect (512) - BFD, DHCPv4/v6 used this slice. VACL (512) - If you are not using any VLAN acl then this is good slice to take it. VPC (256) - If you are not using vPC then another good slice. This is what ...


4

That topology far exceeds the xSTP design maximum. As you've stated, STP with default settings can handle a network with a maximum diameter of 7. As Ricky has shown so aptly, adjusting those settings may allow a diameter of up to 18. Even if your network wasn't exceeding that already, a link disruption in the wrong place can substantially increase the ...


6

I guess you aren't familiar with the infamous "All Systems Down" article from 2003. [ archive ] I can't find the original CIO article, and it was never archived. In simple terms, spanning-tree doesn't work beyond the designed limits. Your network is a timebomb. There's only one place where STP could detect a loop -- the 4 switch core. This really ...


0

ip dhcp excluded-address 192.168.90.1 192.168.90.10 ip dhcp excluded-address 192.168.90.254 ip dhcp pool SITEA network 192.168.90.0 255.255.255.0 default-router 192.168.90.254 dns-server 8.8.8.8 8.8.4.4 lease 8 @ your DHCP Configuration clearly shows that default -gateway is excluded, actually not required to exclude default gateway ip address in DHCP . ...


0

Layer2 devices are not feasible to configure ip address beacuse the IPaddress is layer3 construct .ip address cannot be configured on layer2 switch ports. It's feasible to configure ip address for accessing switch with management IP address VLAN can be created and assign ip address to Vlan .


0

For directly connected networks route entry will be Automatically created in layer3 devices . For other networks static and dynamic route entries should be manually Configured to route the packet towards destination .


0

In cisco switch 2950 which is layer2 switch trunk port as Configure as fallows Switch(config)#intf0/1 Switch(config)#switchport mode trunk Switch(config)#switchport mode trunk allowed vlan all Switch(config)#noshutdown Below command is used in catalyst layer3 switch 3750 ,3850 Switch(config)#int f0/1 Switch(config)#Switchport mode trunk Switch(config)#...


6

Over the years, Cisco has supported various protocols, and has had ACLs for the various protocols, each with a number range for the numbered ACLs (today, we mostly use named ACLs)*: +-----------------------------------------------------+-----------------------+ | Protocol | Range | +------------------...


1

When network setup is new , initially mac -address table in switch will be empty because there are no request received by switch to forward frames towards destination no ARP flooding and no broadcast traffic to create mac-address table in switch . When a request reaches towards switch it's associated mac-address table is created . To get full mac-address ...


-1

Current router on packet tracer is not working because its IOS might be corrupted . Try another router in packet tracer and try to configure sub-interfaces it will work . Example as below Router(config)# int ethernet 0/1 Router(config)#no ip address Router(config)#no shutdown Router(config)#int ethernet 0/1.20 Router(config)ip address X.X.X.X 255.X.X.X ...


-3

Port channel & ethernet channel functionality seems to be same , Both are link aggregation protocols. Multiple links are binded to make single link , links aggregation helps us to increase bandwidth Portchannel is developed by Cisco PAgP being Cisco’s proprietary protocol and LACP being the open standard


0

Use below mention command to match ARP association with the ip address Layer3device(config)#sh ip arp | i 192.168.2.2 If you wants to display all ARP table on device use the fallowing command Layer3device(config)#Sh ip arp From this list of ARP table . Specific ip address and associated mac -address is visible.


1

Yes ! In packet tracers it's not possible to add multiple sites in single server , because packet tracer is a education tool from networking learners high end features are not available in packet tracer But in real world it's possible to host multiple applications in single servers Application can host in single server with various service ports Application ...


1

ip dhcp pool vlan10Pool network 192.168.10.0 255.255.255.0 default-router 192.168.10.1 dns-server 221.110.33.164 221.110.33.132 ip dhcp pool vlan20Pool network 192.168.20.0 255.255.255.0 default-router 192.168.20.1 dns-server 221.110.33.164 221.110.33.132 exit ip dhcp excluded-address 192.168.10.1 ip dhcp excluded-address 192.168.20.1 ip access-list standard ...


-1

Mostly all manageable Switches of cisco supports Vlans . There are unmanaged switches where Vlans are not supported. Basically all manageable switch acts as unmanaged switch if we don't Configure anything . By default Vlan 1 is used if manage switch left un configured.


0

Description is just a commenta given by respective engineer for future acknowledgments and for easy understanding to know on this interface which device is connected . Description can be anything it might be comment or ticket number it's upto team to remember for future acknowledgments Router(config)# int ethernet F0/1 Router(config)# description " ...


0

Please ensure static routes are configured on all routers for reaching management IP address from each router . *In RouterR1 Router1(config)# destination 198.51.100.0 subnet 255.255.255.0 pointing towards gateway 10.0.0.2 Router(config)#destination 198.51.100.0 subnet 255.255.255.0 pointing towards gateway 10.0.0.6 In Router2 Router1(config)# destination ...


0

If it is layer3 switch and fortigate firewall and switch is connected on L3 interface means . Use "sh ip interfàce brief command This command will display all interface status on switch . You will have visibility of IP subnet of interface connected to fortigate firewall In case if firewall is connected with L2 switch then " show mac -address&...


-2

Let discuss from beginning. configure phase1 praposal (IKE) configure phase 2 praposals(ISEC) Configuring interesting traffic by Configuring access -list souce ip address and destination ip address at both peers . create transform-set for encryption, description, intigrity , authentication process create a IPsec profile and map " transform set"...


0

Cisco catalyst 3750 is layer3 switch where NAT features is not available in this switch . Cisco developed layer3 switches to run only with limited features of layer3 stacks . NAT is not feasible in layer3 switch this is the reason NAT policy is not recognised by cisco 3750 layer3 switch . Cisco layer3 switch can provide fallowing feature DHCP Routing ...


-1

To ensure communication between IP address 10.10.1.2 and 10.10.2.4 both ip address belongs to different Vlans to ensure communication between different Vlans inter-Vlan need to be done , for doing inter-Vlan routing layer3 device is required . Where as cisco 2960 is layer2 device . Move both Vlans to Cisco SG300 switch hence this switch has layer3 ...


0

Routing table need to be update accordinglly so that packet that reaches layer3 devices verify routing table to destine packet to destination . For this reason layer3 devices need to have routes to every next hops if traffic wants to destine to destionation on next hop networks.


Top 50 recent answers are included