Answer / saritha

Serial interfaces don't use MAC addresses because MAC
addresses are only used with Ethernet. Serial uses PPP,
HDLC, Frame Relay, etc for its layer 2, none of which use
MAC addresses.

Answer / santosh

Router Serial int dont has MAC address. only Ethernet &
Fast-Ethernet has MAC. hit sh int f0/0....etc...... It will
show MAC ID.

Answer / vikram

Thanks for the answer Saritha.

I am embarassed after checking the right answer..
:). coz i had no clue ... that could be the case..

Answer / depinder

serial interfaces do not possess MAC address....in IPV6 if we configure an ipv6 address,then they derive their link local address from ethernet interface mac address that we call as EUI-64 addressing format.

Answer / diegoashraf

hi,

If ur configuring serial interface as point point link
(not configuring as Fram-relay),no need of mac address.Mac
address is a ethernet standards, MAC address is relevant in
Multi-Access networks like Ethernet where you have several
hosts on the same network.

Answer / kirubasekar

Hi All

First of ALL think the serial interface belongs to which
layer in the OSI model. Does Layer 3 has Mac-address

Answer / s.m.feroz ahmed

Hi,

When S0,S1 is configured one can type command sh
controllers or sh cont and it will show all the details of
Mac Address.

Answer / anhsul

This post is specially for SARITHA..


EVERY SINGLE INTERFACE EITHER ITS OF SWITCH..HUB..ROUTER.. OR ANY SINGLE VIRTUAL INTERFACE..

EVERY INTERFACE HAVE ITS OWN " MAC ADDRESS "..

Answer / vikram

it will be I GUESS !!!
router> int s0/1
router# arp -a

OR

router# sh mac address-table dynamic

second command is for a switch though ill keep watching the
post till we find a perfect answer .. its a good question ..

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