Hi guys, This might seem a bit of a trivial question, but I guess there is no harm in asking. I am looking at a collection of traceroutes all go through the following consecutive hops (* >> 213.248.98.238), as shown here (I kept the DNSname just for completeness): + From >> To + (213.155.130.125:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.130.127:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.131.75:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.131.83:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.131.85:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.134.251:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.134.253:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.134.77:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.137.57:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (213.155.137.59:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.114.111:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.168:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.170:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.174:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.176:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.178:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.180:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.182:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.184:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.186:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.188:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.116.190:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.140.253:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) + (62.115.140.255:las-b3-link.telia.net) >> (213.248.98.238:b harti-ic-140621-las-b3.c.telia.net) Given the way traceroute works (most of the times), which reports back the ingress port of the router it hits, do you think it fair to assume that all the hops that I see on the `From` hop are all different ports of one router? I think the other explanation is that there is switch (or something that does not have IP footprint) between `From` side and `To` side. How probable do you think this second explanation is? Best Regards Reza Motamedi (R.M)