Belajar Bluecoat - RFC-1323 pada Bluecoat

Pada beberapa kasus proxy bluecoat di temui ,client yang tidak bisa mengakses situs bri walaupun secara policy rule dan services link tersebut tidak terblock.

Ternyata situs BRI www.bri.co.id ataupun http://ibank.bri.co.id menggunakan protocol RFC 1323 dan apabila protocol dalam keadaan enabled pada bluecoat maka link tersebut tidak akan bisa dibuka.

Solusinya yaitu dengan mematikan/mendisable nya

==================

Mematikan RFC-1323

==================

Blue Coat SG9000 Series#configure term

Enter configuration commands, one per line. End with CTRL-Z.

Blue Coat SG9000 Series#(config)show tcp-ip

RFC-1323 support: enabled

TCP Newreno support: enabled

IP forwarding: enabled

ICMP bcast echo response: disabled

ICMP timestamp echo response: disabled

Path MTU Discovery: disabled

TCP 2MSL timeout: 120 seconds

TCP window size: 65535 bytes

TCP Loss Recovery Mode: normal

Bypass connection keep-alive: disabled

Fast retransmit: enabled

Blue Coat SG9000 Series#(config)

Blue Coat SG9000 Series#(config)tcp-ip rfc-1323 disabled

ok

==================

Mengaktifkan RFC-1323

==================

Blue Coat SG9000 Series#configure term

Enter configuration commands, one per line. End with CTRL-Z.

Blue Coat SG9000 Series#(config)show tcp-ip

RFC-1323 support: disabled

TCP Newreno support: enabled

IP forwarding: enabled

ICMP bcast echo response: disabled

ICMP timestamp echo response: disabled

Path MTU Discovery: disabled

TCP 2MSL timeout: 120 seconds

TCP window size: 65535 bytes

TCP Loss Recovery Mode: normal

Bypass connection keep-alive: disabled

Fast retransmit: enabled

Blue Coat SG9000 Series#(config)

Blue Coat SG9000 Series#(config)tcp-ip rfc-1323 enable

ok