{"id":848,"date":"2021-08-20T03:08:08","date_gmt":"2021-08-20T03:08:08","guid":{"rendered":"http:\/\/feralpacket.org\/?p=848"},"modified":"2021-08-20T03:08:08","modified_gmt":"2021-08-20T03:08:08","slug":"point-to-point-protocol-ppp-notes","status":"publish","type":"post","link":"https:\/\/feralpacket.org\/?p=848","title":{"rendered":"Point-to-Point Protocol (PPP) Notes"},"content":{"rendered":"

Point-to-Point Protocol (PPP)<\/span><\/p>\n

R1(config)# int s0\/0<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

On the exam, they will always ask for authentication<\/p>\n

Authentication<\/span><\/p>\n

 – Password Authentication Protocol (PAP)<\/p>\n

     -> Plain text<\/p>\n

     -> One way or two way<\/p>\n

     -> One time authentication<\/p>\n

 – Challenge Handshake Authentication Protocol (CHAP)<\/p>\n

     -> Encrypted<\/p>\n

     -> Periodic authentication<\/p>\n

<\/p>\n

PPP Authentication<\/span><\/p>\n

 – Server \/ Client authentication<\/p>\n

     -> Server (authenticator) authenticates by comparing received credentials with the security database<\/p>\n

     -> Client (authenticated) sends credentials to be authenticated<\/p>\n

<\/p>\n

R1(config)# username R2 password CISCO<\/span><\/p>\n

int s0\/0<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

 ppp authentication pap<\/span><\/p>\n

R2(config)# int s0\/0<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

 ppp pap sent-username R2 password CISCO<\/span><\/p>\n

CHAP<\/span><\/p>\n

R1(config)# username R2 password CISCO<\/span><\/p>\n

int s0\/0<\/span><\/p>\n

 encapsulation<\/span><\/p>\n

 ppp authentication chap<\/span><\/p>\n

R2(config)# int s0\/0<\/span><\/p>\n

 encapsulation<\/span><\/p>\n

 ppp chap hostname R2<\/span><\/p>\n

     -> sent as username<\/p>\n

 ppp chap password CISCO<\/span><\/p>\n

 – If the ppp chap hostname is not configured, the router hostname will be sent as the username<\/p>\n

Mutual Authentication<\/span><\/p>\n

R1(config)# username R1 password CISCO<\/span><\/p>\n

int s0\/0<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

 ppp authentication chap<\/span><\/p>\n

R2(config)# username R2 password CISCO<\/span><\/p>\n

int s0\/0<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

 ppp authentication chap<\/span><\/p>\n

Multi Link Point-to-Point Protocol (MLPPP)<\/span><\/p>\n

<\/p>\n

R1(config)# int s0\/0<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

 ppp multilink<\/span><\/p>\n

 ppp multilink group 1<\/span><\/p>\n

int s0\/1<\/span><\/p>\n

 encapsulation ppp<\/span><\/p>\n

 ppp multilink<\/span><\/p>\n

 ppp multilink group 1<\/span><\/p>\n

int multilink1<\/span><\/p>\n

 ip address 10.0.0.1 255.255.255.0<\/span><\/p>\n

 ppp multilink<\/span><\/p>\n

 ppp multilink group 1<\/span><\/p>\n

In IOS 12.4, the multilink interface number has to match the group number<\/p>\n

Load-balancing<\/span><\/p>\n

 – Frame level<\/p>\n

 – Divided equally<\/p>\n

 – Should be used on high end routers<\/p>\n

show ppp multilink<\/span><\/p>\n

show int multilink1<\/span><\/p>\n

Verification<\/span><\/p>\n

sh ppp int <int><\/span><\/p>\n

sh ppp all<\/span><\/p>\n

sh int <int><\/span><\/p>\n

ping <ip address><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Point-to-Point Protocol (PPP)<\/p>\n","protected":false},"author":1,"featured_media":845,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[64,31],"class_list":["post-848","post","type-post","status-publish","format-standard","hentry","category-ccie","tag-ppp","tag-published"],"_links":{"self":[{"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/posts\/848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feralpacket.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=848"}],"version-history":[{"count":1,"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/posts\/848\/revisions"}],"predecessor-version":[{"id":968,"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/posts\/848\/revisions\/968"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feralpacket.org\/index.php?rest_route=\/wp\/v2\/media\/845"}],"wp:attachment":[{"href":"https:\/\/feralpacket.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feralpacket.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feralpacket.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}