Answer / dev

1. For providing the connected interface the AD value is 0 whwre in nxt-hop-add ia 1.
2. in nxt-hop-add the ip has to resolve for the connected interface, whwre else in connected it treated as a connected link, so no resolve..

Answer / jitendera

What i have understand from the Questions is you are trying
to ask

What is the Difference between these two commands

ip route 192.168.100.0 255.255.255.0 172.16.30.2

and

ip route 192.168.100.0 255.255.255.0 fa0/0

This Question may have too many answers which are Partially
correct

1)For providing the connected interface the AD value is 0
whwre in nxt-hop-add ia 1 ( * True ) and a Vital concepts in
BGP over ISP

2)Consider the Scenario that we have one ISP which have
provided a /32 ip address to us and he told to configure it
our router

Now in this case we don't Know the Next hop ip address so we
have ti go by the 2nd command.

3) Suppose yous isp says that he will give the Ip address on
DHCp so yours Internet ip will keep changing this scenario 2
command will be useful

But i guess Dev have Provided the good answers and the
answers will revolve around it. Please share the answer if
you know i will also search and will find the accurate
answers

Answer / aashish

Sorry Dev but can you elaborate it in another way ,really
didnt get what u tryin to explain. And i hope u read the
question carefully we are not talking about the AD .

Answer / bhanu

I think if we configure the interface addd. instead of the
IP address of the next-hop router in the path, this
connection must be point-to-point (not multiaccess).

In case, the router's egress (outbound) interface is
multiaccess link (Ethernet, Frame-Relay, ATM etc.), we must
NEVER use local interface but IP address of the next-hop
router instead. If we do not follow this recommendation,
the router will try to resolve the layer 3 to layer 2
address for every destination out that interface. This
leads to serious inefficiency and shows little
understanding of routing operation of a person who used it

Answer / aashish

Next hop is the next router interface address which contains
the information about the destination IP in its routing table

I am not sure abt the local interface address

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