Perle Systems 1700 manual ªTCP mss value ª1452

Page 54

Applications

Location: Main

ªConfiguration

ªWAN Set-up

ªRemote Site Set-Up

ªEdit Remote Site

ªProtocol Set-Up

ªIP Set-up

ªNAT enabled

ªenabled

Access to some web pages is a common problem experienced when running a PPPoE client on a router. By design, PPPoE packets can support a maximum MTU of up 1492 bytes. Normally when a connection is established over common PPP, the TCP protocol negotiates its maximum data size using the mss option (default 1460). By default, most Windows PCs have their TCP mss option set to 1460 bytes. Since PPPoE requires an additional 8 bytes of header data, the TCP mss option should decrease to 1452 bytes. Therefore when configuring the router for PPPoE, the remote site NAT configuration automatically adjust its TCP mss option to 1452 to accommodate this requirement. To verify this value has been adjusted:

Location: Main

ªConfiguration

ªWAN Set-Up

ªRemote Site Set-up

ªProtocol Set-Up

ªIP Parameters

ªNAT Advanced Set-up

ªTCP mss

ªenabled

ªTCP mss value ª1452

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Contents Bridge / Routers User And System Administration Guide Federal Communications Commission FCC Using This Manual Contents Introduction to Filtering Appendix D Interface Pinouts Unpack the Router Select a SiteIdentify the Reset Switch Location of the Reset Hole on RouterIdentify the Connectors P1705P1730 Connect to the Console Make the Link ConnectionsPower Up the Bridge/Router Managing the P1705 & P1730 Using the MenusConventions Option NameLogin to Bridge/Router and Enter the Required Configuration PasswordT1 or E1 56/64 kbpsNumber of channels As specifedFirst channel ReservedMandatory Configuration Isdn U Isdn S/T PPP IsdnIdentify the Status LEDs OffTypical Applications & How to Configure Them Bridging and Routing Should You Bridge or Route? Bridging Networks Bridged across a WAN linkIP Routing IP Address / Size of Subnet MaskIP Addressing Masks IP SubnetsDefining an IP Subnet Mask IP Default Gateway IP Static RouteIPX Routing Novell Servers in Both LocationsNovell Servers in One Location Only IPX Routed Local Area Networks Servers on one sideRAW 802.3 Frames IPX RoutingEthernet-II Frames Ieee 802.2 FramesNovell Server with Dual LANs IPX ForwardingSelect LAN1 or LAN2 Numbered Links PPP Link ConfigurationPPP Overview Link IP addressUnnumbered Links Peer IP addressMultilink Operation Basic WAN Configurations Basic Isdn ConnectionsSwitch Type Directory NumberSpid Soft Reset Console after a full resetPPP Isdn Manual Call Quick Connections Manual Call IP Address / Subnet mask sizeBasic Frame Relay Configuration Frame Relay configurationAuto Learning the Frame Relay Configuration Link SpeedManual Configuration LMI Type LMI TypePPP Enabled Quick Start Frame RelayIP Address / mask size Basic Leased Line Configuration Quick Start PPP Leased Line ConnectionsBridge Connection Configure Remote Site Profiles Configure Remote Site Profiles for Isdn PPP Isdn NumberEnabled Remote Site Alias Configure Remote Site Profile for Frame RelayªConfiguration WAN Set up Remote Site Set-up DlciPrimary Link CIRDisabled EIRConfigure Remote Site Profiles for Leased Line PPP Site profile Recovery ScheduleConfigure Remote Site Profiles for PPPoE ªenabledLAN ªTCP mss value ª1452 ªISP provided username ªPPPoE remote site aliasªServer Advanced FeaturesConfigure Dynamic Host Configuration Protocol ªIP Address / number of addressesIP address local DNS server IP address external DNS serverEnter the private network IP address of each service offered Network Address Translation and Port Translation11 Napt Configuration Configure PPP Security SecuritySecurity Level Incoming PAP Password Outgoing PAP PasswordIncoming Chap Secret Outgoing Chap Secret Configure Firewall 13 Sample Firewall ApplicationID# 1 for ISP remote site Enter ID# 1 for ISP remote siteInbound FTP ServerSource Address Filter ID # Destination AddressDestination Mask Source MaskCompression Network Address TranslationFilters Enable Bandwidth On DemandQOS Priority Queuing Location MainªPriority ªPriority List Number ªenable Simple Network Time Protocol SntpªIP Address ªTimeIntroduction to Filtering MAC Address FilteringPattern Filtering NotBridge NetBIOS &NetBEUI Windows For WorkgroupsPopular Filters IP & Related TrafficBanyan NetBIOS over TCPIP Router Other interesting TCP PortsAppendix a Menu Trees Menu Tree Menu Tree Appendix B Octet Locations on Ethernet Frames Octet Locations on a Bridged TCP/IP FrameConfiguration Pages Octet Locations Octet Locations on a Bridged XNS Frame Appendix C Servicing Information Opening the caseIdentifying the Internal Components To Clear a Lost Password Changing LAN or WAN InterfacesSelecting MDI or MDI-X LAN Interface Installing the Isdn Link Modules Processor settings for the Isdn Link ModulesConnecting to the ISDN-U Link Module Changing the Termination Straps on the Isdn S/T InterfacePerforming a Software Upgrade PC used for Tftp transfers Router a Router B Router C Pinout Information Link Clocking InformationATL-CSU/DSU Link Module Information Switches Console Pinouts DB25 Female DCE24 & RS232C Link Pinouts DB25 Female DTE11/X.21 Link Pinouts DB15 Female DTERS442 & RS530 Link Pinouts DB25 Female DTELink Pinouts DCERS232 Null-Modem Cable Configuration Figure D-9 RS232 Null-Modem CableNull-Modem Cable Configuration Figure D 10 V-35 Null-Modem CableRS530 Null-Modem Cable Configuration Figure D-11 RS530 Null-Modem CableRS530 To RS449 Conversion Cable Figure D-12 RS530 to RS449 Conversion Cable11/X.21 Null-Modem Cable Configuration Figure D-13 V.11/X.21 Null-Modem Cable