1 script:
function remove_exp(cid, old)
if isPlayer(cid) then
doPlayerAddExperience(cid, - (getPlayerExperience(cid) - old))
end
end

function onKill(cid, target, deathList)
if not isPlayer(target) then
return true
end

if (getPlayerIp(cid) == getPlayerIp(target)) then
addEvent(remove_exp, 100, cid, getPlayerExperience(cid))
end
return true
end



second script:
function onKill(cid, target, lastHit)
if cid ~= target and isPlayer(target) then
if getPlayerIp(cid) == getPlayerIp(target) then
doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_RED, 'You will be punished for killing a player of the same IP and will not recieve the reward.')
else
doPlayerAddItem(cid, 2159, 1)
end
end
return true
end