I have configured the EIGRP 200 in all routers and Auto-summary is enabled .But the Thing is all my loopbacks are summarizing as 145.1.0.0/16 as pointing to a null 0 .But all my Physical interfaces ip are summarizing to the 140.1.0.0/16 pointing to...
Hi everyone,I am having trouble setting up a l2tp access VPN on a Cisco 1900. The vpn goes up correctly, I can ping local router interfaces, but I cannot access LAN.I have the same configuration on a 1800 router working properly. vpdn enable!vpdn-gro...
Hello,I was wondering, how HSRP multicast [Hello messages] are routed.For example in HSRP vers1 [224.0.0.2] and HSRP vers2 [224.0.0.102].Taking some captures, I realized that HSRPvers1 has a TTL of 1 while HSRP vers does have a TTL value of 255.Does ...
My customer is having an issue (I can supply config if required) where they have a 1921 router with a LTE HWIC and the cellular connection is their only link. The issue is they want this to stay up permanently but it keeps dropping. I suspect that th...
Hi expert If I subscribe internet link 100Mbps from ISP, is that mean I can download maximum 100Mbps and upload maximum 100Mbps at same time?
Hi expert I would like to know about TCP 3-Way Handshake process.Let say I want to download some file from internet.So the TCP 3-Way Handshake only occur at first frame before I download the file or every frame until I finish download it?
Hi everyone, We have ASA firewalls which routes all private subnets (RFC-1918) to our Nexus-9000 switches. These switches have a default route for unknown traffic to our firewalls. We see that sometimes traffic is sent to unknown private subnets, whi...
Hello I'm looking some information in regards to Cisco ISR-4221 IOS upgrade & downgrade. It would be helpful, if you can share your experience & knowledge on the below points.1) ISR 4221 - Upgrade from IOS - 16.9 TO 16.12. WHICH sub version of 16.12 ...
Having an issue getting Multicast through the Cisco ASR1000. Simple setup: VM Linux PC 1 & 2, Cisco ASR100 router in the middle (Router on a stick). Can ping from PC 1&2 to CSR, can ping to/from PC1 & PC2. So generally, looks good.Have enabled Multic...
Hello,I have configured Ipsec site to site VPN between two routers all policy parameters and reachability seems ok but tunnel is not getting up i have tried all things nothing is working so pleave have a look R1-------------R2-----------------R3 =~=...
hello,i tried to configure router on a stick using :PC A: 10.12.178.5 Vlan 178PC B : 10.12.177.5 Vlan 177IE 4000 as access switch and IE 5000 as a routing switch.the configuration in IE 4000 was:vlan 177name studentexitvlan 178name collegeexitint g...
I am trying to solve a Lab about configuring BGP, but I've stopped in this command.ip route 172.16.0.0 255.255.0.0 null0what is the purpose of this command, also what does null0 means?I think the command workes as ACL, but I need deep information abo...
i has try to make VLSM Address but the WAN LINK 3 has no IP Address because i already used all host of network 192.168.45.0/24 from Penang network until wan link 2. What should i do if i used all of host available and only Wan link 3 doesn't has any ...
Here is a topology im working on, i have ospf on R1,R2,R3 and i have the INTERNET router as a default gateway on R1.R1 and INTERNET can ping to each other, and all the other computers and routers can reach 209.108.1.2, but never 209.108.1.1 for some ...
Hi guy,I have topology below, I can ping to vlan 1: 10.0.0.158/28 from all routers: Core1, core2, R1. But I can't ping to vlan 1 from PC 1 and PC2. both pc1 and pc2 can ping all routers and loopback0.Below the picture are my configsPlease help me, th...
