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New Member

cant block "skype" traffic By Nbar !!??

Hiiii ,

im trying to block traffic of skype by cisco NBAR , i have cisco router 1941

with ios :

System image file is "flash0:c1900-universalk9-mz.SPA.152-4.M5.bin"


im trying to match skype traffic by "match protocol skype"


but it dont match !!!

i googled , i found many articles that say that  new lastet version of skype use https protocol for VOIP !!!


so , im here asking

wt other factors i can wotk so that i match skype traffic ?

i need to stop skype , whatsupp , viber traffic

i have a big difficulties with that , cause all of then use https !!!!


can we match hello messages or packets length and block them ?


i found somebody says :

route-map block-skype-https permit 10

match lenght 112 112

set interface null 0


not sure if this info is correct !


plz advice me...



New Member

any help ??? do ui need next

any help ???


do ui need next generation firewall ? or ssl firewall  or something like that ?

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