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i have set &quot;ip access-group 100 in&quot; because i do not have any other option under my int gig0/0 .. But after applying all the above lines do not work it still able to ping from other hosts as well. 
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i have set "ip access-group 100 in" because i do not have any other option under my int gig0/0 .. But after applying all the above lines do not work it still able to ping from other hosts as well.

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apply these under the vty lines<br />
for instance <br />
<br />
line vty 0-4<br />
access-class 100 in<br />
<br />
the number of vty lines are platform dependant. To cover all lines type line vty 0 ?<br />
in this case the last vty line is 807<br />
R2(config)#line vty 0 ?<br />
&nbsp; &lt;1-807&gt; &nbsp;Last Line number
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apply these under the vty lines
for instance

line vty 0-4
access-class 100 in

the number of vty lines are platform dependant. To cover all lines type line vty 0 ?
in this case the last vty line is 807
R2(config)#line vty 0 ?
  <1-807>  Last Line number

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its not a complete solution i have to do some more things to acheive that functionality
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its not a complete solution i have to do some more things to acheive that functionality

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<div class="content wysiwyg-content">
I want to set an ACL on Gigabit Interface on the router to accept icmp from only one host and deny all request of ICMP from all others.<br />
<br />
Thanks and regards<br />
<br />
Saqib
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I want to set an ACL on Gigabit Interface on the router to accept icmp from only one host and deny all request of ICMP from all others.

Thanks and regards

Saqib

how to create an ACl on cisco router to accept icmp from particular host and deny all others

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.