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# Service Modules

Table 18: Service Modules

Protocol or Application | Service Line Module (SM) | IPSec Service Line Module
--- | --- | ---
Accepts traffic destined for GRE tunnels or DVMRP (IP-in-IP) tunnels | No | No
APS/MSP | No | No
ATM | No | No
BERT | No | No
BFD | No | No
BGP | Yes | Yes
BGP/MPLS VPNs | No | No
Bridged Ethernet | No | No
Bridged IP | No | No
Cisco HDLC | No | No
DHCP external server | No | No
DHCP local server | No | No
DVMRP and GRE support—access side | No | No
DVMRP and GRE support—server side | Yes (over dedicated tunnel server ports) | Yes (over dedicated tunnel server ports; DVMRP over IPsec only; GRE over IPsec)
Dynamic interfaces | No | No
F4 OAM and F5 OAM (ATM administration) | No | No
FDL (facilities data link) | No | No
Firewall | Yes | No
Frame Relay | No | No
IEEE 802.3ad link aggregation | No | No
IP | Yes | Yes
IP multicast | Yes | No
IP reassembly for tunneled packets | Yes | Yes
IPSec | No | Yes
IPv6 | Yes | No
IPv6 multicast | Yes | No
IPv6 neighbor discovery | No | No
IS-IS | Yes | Yes
J-Flow Statistics | Yes | Yes
L2TP/IPSec | No | Yes
LAC support—access side | No | No
LAC support—peer side | No | No
LNS support—peer side | Yes | No
Local loopback | No | No
MDL (maintenance data link) | No | No
Mobile IP home agent | Yes | No
MPLS | No (over GRE only) | No (over GRE only)
Multilink Frame Relay | No | No
Multilink PPP | Yes (with fragmentation and reassembly; dynamic only) | No
Network Address Translation (NAT) | Yes | No
NBMA (multipoint ATM) | No | No
OSPF | Yes | Yes
Packet Mirroring | Yes | Yes
Packet over SONET | No | No
PPP | Yes (dynamic only) | No
PPPoE | No | No
Remote loopback | No | No
RIP | Yes | Yes
Subscriber interfaces (static) | Yes (GRE tunnels only) | No
Subscriber interfaces (dynamic) | Yes (over GRE tunnels only) | No
Transparent bridging | No | No
Tunnel-server ports | Yes (dedicated only) | Yes (dedicated only)
Unified ISSU | Yes | No
VPLS (network interfaces) | No | No
VPLS (virtual core interfaces) | No | No
VRRP | No | No

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