pls help,i have a mail server with ip address 192.168.4.5/26 and WAN 196.46.83.x/28 and i want the mail server to have 512MB dedicated,i have 2Gbps from ISP what should be done on router so as external user access mail server and should not open slowly?help on router conf with mail server ip given to have 512mb
ok lets se if i understand you correct.
you have a mailserver
you want people from the outside to access that mailserver over the internet.
and you want to setup the link so that the mailsystem always gets atleast 512Mbps.
at times when the mailsystem does not use the 512Mb you want the rest of the link to be able to use that data too.
since the users are accessing the from the outside you can not setup how the link behaves.
call your isp and ask them to shape the traffic the way you want it.
you can help out with setting up limits and quality of service from the different lans that they do not take more than 1,5Gbps total bandwith of the internet link.
You need to have vlan for your mail server so that you can allocate particular bandwidth to that vlan.
Please follow the below config in order to allocate bandwidth to vlan interface.
Policy a specific VLAN number on VLAN interface.
match vlan 5
match class-map class-default
police 2000000 250000 exceed-action drop
service-policy input vlan5-limit
After you apply this configuration, the traffic with VLAN 5 coming from any will be policed at 2Mbps.
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