Questions tagged [next-hop]
For questions about the next gateway to which packets should be forwarded along the path to their final destination. One technique to make content of a routing table smaller is called next-hop routing.
14
questions
2
votes
1
answer
65
views
How does the final next-hop router forward a frame to the destination device if the public IP address is that of its router
We know that all device’s connected to the same local network will have the same public IP address as each other, which belongs to their local router.
So, since the IP packet’s destination address is ...
1
vote
0
answers
282
views
Trouble configuring BGP policy 'next-hop self' in JunOS
Networking Community,
Problem: I am struggling with applying the correct BGP “next-hop self” policies in JunOS.
Background: I have been brushing up setting BGP policies, e.g. ‘direct’, ‘next-hop self’,...
1
vote
1
answer
232
views
What happens if the layer 2 destination MAC address mismatches?
I was wondering, what happens if I send a packet with layer 2 destination (say 1ebf) different that what will receive it, lets say a router (mac 22ff) recieves it. Will it drop the packet? Or ...
1
vote
1
answer
173
views
What are the commands to configure static routes using next-hop IP addresses?
Given the network topology above and that X in all subnets should be replaced with 1.
What are the commands to configure static routes using the next-hop IP addresses on r1 and r2, given that you are ...
1
vote
3
answers
409
views
Why do IP(v6) routes require a next hop IP(v6) address and not just a MAC Address?
My understanding of how you "ask" a router to route a packet for you is that you simply put the IP(v6) address of the destination host and the MAC address of the router you are routing via ...
1
vote
2
answers
78
views
Routing infrastructure doubt. It is a functionally design this?
I have design the following network diagram, but I cannot figure out if it could cause some issue on the network:
Some detail about the infrastructure:
Network connect Ext rtr A, Int rtr B and C is ...
0
votes
2
answers
918
views
F5 Policy Based Routing - how do you change next hop without any conditions?
I'm trying to change the nexthop for a virtual server in F5. I have read this article.
I have tried using the this irule
{
nexthop internal 10.10.0.2
}
by itself and it doesn't work. I also have ...
0
votes
2
answers
101
views
Traceroute command last hop cannot be reached
By running the traceroute command below I obtained this output:
traceroute www.google.com -q 3 -m 60
traceroute to www.google.com (172.217.169.36), 60 hops max, 60 byte packets
1 gateway (10.81.62....
6
votes
1
answer
810
views
Can non-recursive BGP route be used to determine next-hop for recursive BGP route?
In BGP recursive scenario, the recursive route is taking an unexpected next-hop. Here is the routing table:
S* 0.0.0.0/0 [10/0] via 10.10.10.1, wan
B 172.16.5.0/24 [20/0] via 172.80.80.1, MPLS, ...
4
votes
2
answers
4k
views
the meaning of static routes and next hop
i configured a network topology on cisco packet tracer to learn about the static routing, as shown in figure below
i spent a lot of time to ensure the connectivity between server0 and server2(cause i'...
3
votes
2
answers
3k
views
minimum hop limit for a packet where there are n routers between source and destination
I am having some confusion while calculating he minimum hop limit ...
consider following scenario:
(source)-------(R1)--------(R2)--------(destination)
Now when an IP datagram is supposed to travel ...
2
votes
2
answers
5k
views
Difference in number of hops in Traceroute
I was experimenting with some of the network monitoring commands in cmd and I noticed that there's a significant difference in the number of hops in the output of tracert for different hosts. For ...
2
votes
1
answer
651
views
Route selection in RIPv2 and RIPng (equal hop count)
How do RIPv2/RIPng select between equal routes? Randomly?
For example, 2 broadcast domains, 5 routers, all running RIPv2 and RIPng. The | pipes represent a switch:
R01
| R02
| R03 |
...
3
votes
2
answers
2k
views
Junos BGP physical Next-hop
VJX 0,1,3 are setup to be RR’s for this simple test , i want to know why link p5 is always preferred even though the physical next-hop changes , and the IGP path to the next-hop is is not via p5 ...
...